Top-100 Most Cited Dental Articles with Authors from Brazil

Gonçalves, Ana Paula; Plá, Ana Laura; Rodolfo, Bruna; Nahsan, Flavia Pardo; Correa, Marcos Britto; Moraes, Rafael Ratto de

doi:10.1590/0103-6440201902529

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Article • Braz. Dent. J. 30 (2) • Mar-Apr 2019 • https://doi.org/10.1590/0103-6440201902529 copy

Top-100 Most Cited Dental Articles with Authors from Brazil

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

This study analyzes the characteristics of the top-100 most cited articles published in international dental journals with at least one coauthor affiliated to Brazil. A search in Scopus database for articles published between 1996 and 2017 was carried out in the 178 journals belonging to the category “Dentistry" identified in SCImago Journals & Country Rank. From the top-100 most cited articles, variables related to the journal, article, and authors were collected. Annual citation averages (ACA) and relative citation ratios (RCR) were calculated. Data were analyzed descriptively. There were 75 original reports and 25 reviews in the sample. The number of citations ranged between 124 and 657 (mean=202, median=168). The papers were published in 31 different journals (46% in only four journals), none based in Brazil. The most frequent subjects (61%) were Dental Materials, Endodontics, and Periodontology, which accounted for 63.6% of the total citations. The subject with the highest ACA was Oral and Maxillofacial Surgery and the subject with the highest RCR was Oral Radiology. Only 12 articles were cited more than 300 times. International collaboration was present in 61 articles and funding was reported in 49 articles. The first author was from Brazil in 70% and corresponding author in 55% of the papers. Southeast (83%) and South (20%) were the regions of Brazil with most presence of coauthors. This top-100 list is presented to provide an overview of the most cited articles and aid in supporting further analyses regarding publication and citation behaviors of Brazilian dentistry.

Key Words:
journal article; bibliometrics; journal Impact Factor; database

Article	Cites*	ACA	RCR	Brazil alone?	First author?
Dimensional ridge alterations following tooth extraction. An experimental study in the dog. Araújo et al., J Clin Periodontol 32:212-8, 2005.	657	49.0	17.5	N	Y
Collagen degradation by host-derived enzymes during aging. Pashley et al., J Dent Res 83:216-21, 2004.	524	40.3	23.5	N	N
Single-step adhesives are permeable membranes. Tay et al., J Dent 30:371-82, 2002.	400	26.7	18.2	N	N
Ridge alterations following implant placement in fresh extraction sockets: an experimental study in the dog. Araújo et al., J Clin Periodontol 32:645-52, 2005.	389	32.4	17.5	N	Y
The microtensile bond test: a review. Pashley et al., J Adhes Dent, 1(4):299-309, 1999.	382	21.2	14.4	N	N
Dentine permeability and dentine adhesion. Pashley et al., J Dent 25:355-72, 1997.	382	19.1	22.0	N	N
Dynamics of bone tissue formation in tooth extraction sites: an experimental study in dogs. Cardaropoli et al., J Clin Periodontol 30:809-18, 2003.	341	24.3	12.6	N	N
An evaluation of microbial leakage in roots filled with a thermoplastic synthetic polymer-based root canal filling material (Resilon). Shipper et al., J Endod 30:342-7, 2004.	331	25.5	17.8	N	N
Mechanisms of antimicrobial activity of calcium hydroxide: a critical review. Siqueira Jr et al., Int Endod J 32:361-9, 1999.	329	18.3	15.7	Y	Y
Chlorhexidine arrests subclinical degradation of dentin hybrid layers in vivo. Hebling et al., J Dent Res 84(8):741-46, 2005.	324	27.0	15.6	N	Y
State of the art etch-and-rinse adhesives. Pashley et al., Dent Mater 27:1-16, 2011.	318	53.0	25.7	N	N
The adhesion between fiber posts and root canal walls: comparison between microtensile and push-out bond strength measurements. Goracci et al., Eur J Oral Sci 112:353-61, 2004.	317	24.4	15.0	N	N
In vivo preservation of the hybrid layer by chlorhexidine. Carrilho et al., J Dent Res 86(6):529-33, 2007.	294	29.4	15.5	N	Y
Analysis of the accuracy of linear measurements obtained by cone beam computed tomography (CBCT-NewTom). Lascala et al., Dentomaxillofac Radiol 33(5):291-4, 2004.	294	22.6	15.6	Y	Y
Aetiology of root canal treatment failure: Why well-treated teeth can fail. Siqueira Jr., Int Endod J 34(1):1-10, 2001.	290	18.1	14.6	Y	Y
Water sorption/solubility of dental adhesive resins. Malacarne et al., Dent Mater 22(10):973-80, 2006.	279	25.3	15.7	Y	Y
Factors involved in the development of polymerization shrinkage stress in resin-composites: A systematic review. Braga et al., Dent Mater 21(10):962-70, 2005.	278	23.2	13.3	N	Y
A review of polymerization contraction: The influence of stress development versus stress relief. Carvalho et al., Oper Dent 21(1):17-24, 1996.	269	12.8	18.3	N	Y
Comparisons of subgingival microbial profiles of refractory periodontitis, severe periodontitis, and periodontal health using the human oral microbe identification microarray. Colombo et al., J Periodontol 80(9):1421-32, 2009.	261	32.6	12.8	N	Y
Microorganisms from canals of root-filled teeth with periapical lesions. Pinheiro et al., Int Endod J 36(1):1-11, 2003.	250	17.8	12.4	Y	Y
Clinical implications and microbiology of bacterial persistence after treatment procedures. Siqueira Jr et al., J Endod 34(11):1291-301, 2008.	248	27.5	15.1	Y	Y
Association of Enterococcus faecalis with different forms of periradicular diseases. Rôças et al., J Endod 30(5):315-20, 2004.	246	18.9	9.5	Y	Y
Polymerase chain reaction-based analysis of microorganisms associated with failed endodontic treatment. Siqueira Jr et al., Oral Surg Oral Med Oral Pathol Oral Radiol Endod 97(1):85-94, 2004.	237	18.2	10.5	Y	Y
Regional measurement of resin-dentin bonding as an array. Shono et al., J Dent Res 78(2):699-705, 1999.	237	13.1	11.2	N	N
Longevity of posterior composite restorations: Not only a matter of materials. Demarco et al., Dent Mater 28(1):87-101, 2012.	235	47.0	26.2	N	Y
In vitro antimicrobial activity of propolis and Arnica montana against oral pathogens. Koo et al., Arch Oral Biol 45(2):141-8, 2000.	234	13.8	8.0	Y	Y
In vitro antimicrobial activity of several concentrations of sodium hypochlorite and chlorhexidine gluconate in the elimination of Enterococcus faecalis. Gomes et al., Int Endod J 34(6):424-8, 2001.	229	14.3	11.8	Y	Y
Destructive and protective roles of cytokines in periodontitis: A re-appraisal from host defense and tissue destruction viewpoints. Garlet, J Dent Res 89(12):1349-63, 2010.	228	32.5	11.1	Y	Y
Chlorhexidine preserves dentin bond in vitro. Carrilho et al., J Dent Res 86(1):90-4, 2007.	223	22.3	11.4	N	Y
Accuracy of cone beam computed tomography and panoramic and periapical radiography for detection of apical periodontitis. Estrela et al., J Endod 34(1):273-9, 2008.	222	24.7	13.5	N	Y
Saliva composition and functions: A comprehensive review. De Almeida et al., J Contemp Dent Pract 9(3):72-80, 2008.	218	24.2	8.7	Y	Y
In vitro effects of therapeutic ultrasound on cell proliferation, protein synthesis, and cytokine production by human fibroblasts, osteoblasts, and monocytes. Doan et al., J Oral Maxillofac Surg 57(4):409-20, 1999.	212	11.8	6.4	N	N
A study of the fate of the buccal wall of extraction sockets of teeth with prominent roots. Nevins et al., Int J Periodontics Restorative Dent 26(1):18-29, 2006.	211	19.2	8.2	N	N
Fracture resistance of roots endodontically treated with a new resin filling material. Teixeira et al., J Am Dent Assoc 135(5):646-52, 2004.	211	16.2	11.8	N	Y
The role of sucrose in cariogenic dental biofilm formation - New insight. Paes Leme et al., J Dent Res 85(10):878-87, 2006.	206	18.7	8.9	N	Y
Modeling of the buccal and lingual bone walls of fresh extraction sites following implant installation. Araújo et al., Clin Oral Implants Res 17(6):606-14, 2006.	205	18.6	11.3	N	Y
Activation of gelatinolytic/collagenolytic activity in dentin by self-etching adhesives. Nishitani et al., Eur J Oral Sci 114(2):160-6, 2006.	201	18.3	10.0	N	N
Impact of traumatic injuries to the permanent teeth on the oral health-related quality of life in 12-14-year-old children. De Sousa Cortes et al., Community Dent Oral Epidemiol 30(3):193-8, 2002	201	13.4	10.2	N	Y
Determinants of masticatory performance in dentate adults. Hatch et al., Arch Oral Biol 46(7):641-8, 2001.	201	12.6	9.7	N	N
Reaction of rat connective tissue to implanted dentin tubes filled with mineral trioxide aggregate or calcium hydroxide. Holland et al., J Endod 25(3):161-6, 1999.	190	10.5	10.3	Y	Y
Direct comparison of the bond strength results of the different test methods: A critical literature review. Scherrer et al., Dent Mater 26(2):e78-e93, 2010.	189	27.0	13.4	N	N
Effectiveness of 2% chlorhexidine gel and calcium hydroxide against Enterococcus faecalis in bovine root dentine in vitro. Gomes et al., Int Endod J 36(4):267-75, 2003.	188	13.4	9.8	Y	Y
Chemokines in oral inflammatory diseases: Apical periodontitis and periodontal disease. Silva et al., J Dent Res 86(4):306-19, 2007.	187	18.7	6.6	Y	Y
The clinical success of all-ceramic restorations. Della Bona et al., J Am Dent Assoc 139(9s):8s-13s, 2008.	185	20.5	10.6	N	Y
Contraction stress related to degree of conversion and reaction kinetics. Braga et al., J Dent Res 81(2):114-8, 2002.	178	11.9	6.9	N	Y
The role of matrix metalloproteinases in the oral environment. Hannas et al., Acta Odontol Scand 65(1):1-13, 2007.	175	17.5	8.0	N	Y
Effect of etching and airborne particle abrasion on the microstructure of different dental ceramics. Borges et al., J Prosthet Dent 89(5):479-88, 2003.	174	12.4	9.6	N	Y
From dry bonding to water-wet bonding to ethanol-wet bonding. A review of the interactions between dentin matrix and solvated resins using a macromodel of the hybrid layer. Pashley et al., Am J Dent 20(1):7-20, 2007.	170	17.0	8.4	N	N
Clinical application of stereolithographic surgical guides for implant placement: Preliminary results. Di Giacomo et al., J Periodontol 76(4):503-7, 2007.	169	14.1	7.9	Y	Y
Chemomechanical reduction of the bacterial population in the root canal after instrumentation and irrigation with 1%, 2.5%, and 5.25% sodium hypochlorite. Siqueira Jr et al., J Endod 26(6):331-4, 2000.	168	9.9	8.6	Y	Y
Prevalence and risk variables for peri-implant disease in Brazilian subjects. Ferreira et al., J Clin Periodontol 33(12):929-35, 2006.	167	15.2	8.7	Y	Y
Response of the pulp of dogs to capping with mineral trioxide aggregate or a calcium hydroxide cement. Faraco Junior et al., Dent Traumatol 17(4):163-6, 2001.	167	10.4	7.0	Y	Y
Cone-beam computed tomography for routine orthodontic treatment planning: A radiation dose evaluation. Silva et al., Am J Orthod Dentofacial Orthop 133(5):640e1-e5, 2008.	166	18.4	11.1	N	Y
Patterns of chemokines and chemokine receptors expression in different forms of human periodontal disease. Garlet et al., J Periodont Res 38(2):210-7, 2003.	166	11.8	4.9	Y	Y
SHED differentiate into functional odontoblasts and endothelium. Sakai et al., J Dent Res 89(8):791-6, 2010.	164	23.4	7.4	N	Y
Bonding of self-etch and total-etch adhesives to carious dentin. Yoshiyama et al., J Dent Res 81(8):556-60, 2002.	164	10.9	6.7	N	N
In vitro evaluation of the antimicrobial activity of chlorhexidine and sodium hypochlorite. Vianna et al., Oral Surg Oral Med Oral Pathol Oral Radiol Endod 97(1):79-84, 2004.	163	12.5	6.7	Y	Y
Chlorhexidine stabilizes the adhesive interface: A 2-year in vitro study. Breschi et al., Dent Mater 26(4):320-5, 2010.	161	23.0	11.7	N	N
Biofilms and apical periodontitis: Study of prevalence and association with clinical and histopathologic findings. Riucci et al., J Endod 36(8):1277-88, 2010.	158	22.6	9.7	N	N
Tissue modeling following implant placement in fresh extraction sockets. Araújo et al., Clin Oral Implants Res 17(6):615-24, 2006.	158	14.4	8.2	N	Y
Biochemical composition and cariogenicity of dental plaque formed in the presence of sucrose or glucose and fructose. Cury et al., Caries Res 34(6):491-7, 2000.	153	9.0	6.7	Y	Y
The influence of Bio-Oss collagen on healing of an extraction socket: An experimental study in the dog. Araújo et al., Int J Periodontics Restorative Dent 28(2):123-35, 2008.	152	16.9	8.0	N	Y
Endodontic infections: Concepts, paradigms, and perspectives. Siqueira Jr, Oral Surg Oral Med Oral Pathol Oral Radiol Endod 94(3)281-93, 2002.	152	10.1	6.1	Y	Y
Effect of non-surgical periodontal therapy on glycemic control in patients with type 2 diabetes mellitus. Rodrigues et al., J Periodontol 74(9):1361-7, 2003.	151	10.8	5.6	Y	Y
Disinfection of immature teeth with a triple antibiotic paste. Windley III et al., J Endod 31(6):439-43, 2005.	148	12.3	6.6	N	N
Optimizing dentin bond durability: Control of collagen degradation by matrix metalloproteinases and cysteine cathepsins. Tjaderhane et al., Dent Mater 29(1):116-35, 2013.	147	36.7	15.3	N	N
Composition of supra- and subgingival biofilm of subjects with healthy and diseased implants. Shibli et al., Clin Oral Implants Res 19(10):975-82, 2008.	147	16.3	7.9	Y	Y
PTCH gene mutations in odontogenic keratocysts. Barreto et al., J Dent Res 79(6)1418-22, 2000.	146	8.6	3.4	N	Y
Biomineralization ability and interaction of mineral trioxide aggregate and white Portland cement with dentin in a phosphate-containing fluid. Reyes-Carmona et al., J Endod 35(5):731-6, 2009.	144	18.0	10.7	N	Y
Effect of smear layers on the bonding of a self-etching primer to dentin. Tay et al., J Adhes Dent 2(2):99-116, 2000.	144	8.5	5.3	N	N
In vivo antimicrobial activity of 2% chlorhexidine used as a root canal irrigating solution. Leonardo et al., J Endod 25(3):167-71, 1999.	143	7.8	9.1	Y	Y
Psychometric properties of the Brazilian version of the Oral Health Impact Profile - Short form. Oliveira et al., Community Dent Oral Epidemiol 33(4):307-14, 2005.	139	11.6	8.2	Y	Y
Diversity of endodontic microbiota revisited. Siqueira Jr. et al., J Dent Res 88(11):969-81, 2009.	138	17.2	8.2	Y	Y
Fluid movement across the resin-dentin interface during and after bonding. Hashimoto et al., J Dent Res 83(11):843-8, 2004.	138	10.6	7.1	N	N
Matrix metalloproteinases, their physiological inhibitors and osteoclast factors are differentially regulated by the cytokine profile in human periodontal disease. Garlet et al., J Clin Periodontol 31(8):671-9, 2004.	138	10.6	4.3	Y	Y
Epidemiological analysis of maxillofacial fractures in Brazil: A 5-year prospective study. Brasileiro et al., Oral Surg Oral Med Oral Pathol Oral Radiol Endod 102(1):28-34, 2006.	136	12.4	11.1	Y	Y
Causes and prevalence of traumatic injuries to the permanent incisors of school children aged 12 years in Jaragua do Sul, Brazil. Marcenes et al., Int Dent J 50(2):87-92, 2000.	136	8.0	8.5	N	N
Microbial causes of endodontic flare-ups. Siqueira Jr., Int Endod J 36(7)453-63, 2003.	135	9.6	6.3	Y	Y
In vitro assessment of the antimicrobial action and the mechanical ability of chlorhexidine gel as an endodontic irrigant. Ferraz et al., J Endod 27(7):452-5, 2001.	135	8.4	7.3	Y	Y
Ridge preservation with the use of Bio-Oss collagen: A 6-month study in the dog. Araújo et al., Clin Oral Implants Res 20(5):433-40, 2009.	134	16.7	9.6	N	Y
Salivary gland tumors in a Brazilian population: A retrospective study of 496 cases. Ito et al., Int J Oral Maxillofac Surg 34(5):533-6, 2005.	134	11.2	4.6	Y	Y
Calcium hydroxide pastes: Classification and clinical indications. Fava et al., Int Endod J 32(4):257-82, 1999.	134	7.4	7.4	N	Y
Histological evaluation of the effectiveness of five instrumentation techniques for cleaning the apical third of root canals. Siqueira Jr et al., J Endod 23(8):499-502, 1997.	134	6.7	8.6	Y	Y
Root-coverage procedures for the treatment of localized recession-type defects: A Cochrane systematic review. Chambrone et al., J Periodontol 81(4):452-78, 2010.	133	19.0	9.5	Y	Y
Evaluation of the effectiveness of sodium hypochlorite used with three irrigation methods in the elimination of Enterococcus faecalis from the root canal, in vitro. Siqueira Jr et al., Int Endod J 30(4):279-82, 1997.	132	6.6	4.5	Y	Y
Evaluation of the adhesion of fiber posts to intraradicular dentin. Goracci et al., Oper Dent 30(5):627-35, 2005.	131	10.9	5.4	N	N
Single-bottle adhesives behave as permeable membranes after polymerization. I. In vivo evidence. Tay et al., J Dent 32(8):611-21, 2004.	131	10.1	6.4	N	N
Prognosis in periradicular surgery: A clinical prospective study. Zuolo et al., Int Endod J 33(2):91-8, 2000.	131	7.7	7.0	N	Y
Monolithic CAD/CAM lithium disilicate versus veneered Y-TZP crowns: Comparison of failure modes and reliability after fatigue. Guess et al., Int J Prosthodont 23(5):434-42, 2010.	129	18.4	9.2	N	N
The effect of material characteristics, of surface topography and of implant components and connections on soft tissue integration: A literature review. Rompen et al., Clin Oral Implants Res 17(S2):55-67, 2006.	128	11.6	5.1	N	N
Microtensile bond strength of a resin cement to glass infiltrated zirconia-reinforced ceramic: The effect of surface conditioning. Amaral et al., Dent Mater 22(3):283-90, 2006.	128	11.6	7.5	N	Y
Prevalence and correlates of traumatic injuries to the permanent teeth of schoolchildren aged 9-14 years in Belo Horizonte, Brazil. Cortes et al., Dent Traumatol 17(1):22-6, 2001.	128	8.0	7.1	N	Y
Direct effect of intracanal medicaments on survival of stem cells of the apical papila. Ruparel et al., J Endod 38(10):1372-5, 2012.	127	25.4	13.0	N	N
Bone reformation and implant integration following maxillary sinus membrane elevation: An experimental study in primates. Palma et al., Clin Implant Dent Relat Res 8(1):11-24, 2006.	127	11.5	7.5	N	Y
Overweight and obesity as risk indicators for periodontitis in adults. Dalla Vecchia al., J Periodontol 76(10):1721-8, 2005.	126	10.5	4.8	N	Y
Lipomas of the oral cavity: Clinical findings, histological classification and proliferative activity of 46 cases. Fregnani et al., Int J Oral Maxillofac Surg 31(1):49-53, 2003.	126	9.0	7.5	Y	Y
Mechanical properties of resin cements with different activation modes. Braga et al., J Oral Rehabil 29(3):257-62, 2002.	126	8.4	6.5	Y	Y
Healing of extraction sockets and surgically produced - Augmented and non-augmented - Defects in the alveolar ridge. An experimental study in the dog. Cardaropoli et al., J Clin Periodontol 32(5):435-40, 2005.	125	10.4	5.5	N	N
Adhesion to tooth structure: A critical review of “micro" bond strength test methods. Armstrong et al., Dent Mater 26(2):e50-e62, 2010.	124	17.7	8.2	N	N
The effect of mineral trioxide aggregate on the apexification and periapical healing of teeth with incomplete root formation. Felippe et al., Int Endod J 39(1):2-9, 2006.	124	11.3	5.7	Y	Y

Journal	Articles	JCR IF 2017	CiteScore 2017	Access type	Journal subject	Publisher (country)
J Dent Res	14	5.38	5.05	Mixed	Multidisciplinary	SAGE Publications (USA)
J Endod	13	2.88	3.72	Mixed	Endodontics	Elsevier (Netherlands)
Int Endod J	10	3.01	3.08	Mixed	Endodontics	John Wiley & Sons (USA)
Dent Mater	9	4.03	4.53	Mixed	Dental Materials	Elsevier (Netherlands)
J Clin Periodontol	6	4.04	4.14	Mixed	Periodontology	John Wiley & Sons (USA)
Clin Oral Implant Res	5	4.30	3.81	Mixed	Implantology	John Wiley & Sons (USA)
J Periodontol	5	3.39	2.85	Closed	Periodontology	American Academy of Periodontology (USA)
Oral Surg Oral Med Oral Pathol Oral Radiol	4	1.71	1.47	Mixed	Multidisciplinary	Elsevier (Netherlands)
J Dent	3	3.77	4.13	Mixed	Multidisciplinary	Elsevier (Netherlands)

Subject	Articles	Cites		ACA	RCR (SEM)
Subject	Articles	Total	Mean (SD)	ACA	RCR (SEM)
Dental Materials	27	5848	217 (88)	19.7	12.4 (1.1)
Endodontics	22	4096	186 (60)	14.5	9.6 (0.7)
Periodontology	12	2595	216 (107)	20.7	8.5 (1.1)
Oral Biology	11	2215	201 (76)	18.8	11.2 (1.5)
Oral and Maxillofacial Surgery	7	1825	261 (189)	23.0	9.2 (1.1)
Implantology	5	749	150 (21)	13.4	7.5 (0.6)
Oral Radiology	3	682	227 (64)	21.9	13.4 (1.3)
Restorative Dentistry	3	640	213 (100)	19.5	10.6 (2.9)
Pediatric Dentistry	3	465	155 (40)	9.8	8.6 (0.9)
Oral Pathology	3	359	120 (37)	13.9	5.2 (1.2)
Cariology	2	406	203 (10)	9.6	7.9 (1.1)
Public Health	2	275	138 (72)	12.0	9.6 (1.4)

Variable	Outcomes	n
Article type	Review	25
Article type	Original research	75
First author affiliation	Brazil	70
First author affiliation	Other	30
Corresponding author affiliation	Brazil	55
	Other	40
	Not reported	5
Region of Brazil*	Central-West	3
	North	1
	Northeast	3
	South	20
	Southeast	83
Number of authors	1	4
	2-6	78
	≥7	18
Number of pages	<10	66
Number of pages	>10-20	34
Collaboration with other countries	0	39
	1	35
	≥2	26
Main collaboration countries*	Finland	8
	Italy	8
	USA	28
Funding	Sponsorship	2
	Research grant	33
	Donation of materials	5
	More than one	9
	Not reported	51
Type of title	Descriptive	97
Type of title	Declarative	3
Number of characters in the tile	≤100	58
Number of characters in the tile	>100	42
Hypothesis type	Null	8
	Alternative	11
	None	82
Use of subtitles in Experimental section	Yes	53
Use of subtitles in Experimental section	No	47
Number of tables	0	18
	1-5	76
	≥ 6	6
Number of figures	0	19
	1-5	55
	≥6	26
Use of color figures	Yes	29
Use of color figures	No	71
Conclusion as separate section	Yes	36
Conclusion as separate section	No	64

Institution (acronym)*	n**
University of São Paulo (USP)	35
University of Campinas (UNICAMP)	23
Estácio de Sá University	12
State University of Maringá (UEM)	9
São Paulo State University (UNESP)	8
Federal University of Minas Gerais (UFMG)	6
Federal University of Rio de Janeiro (UFRJ)	6
Other institutions (not universities or schools)	6
Bandeirante University of São Paulo (UNIBAN)	3
Federal University of Goiás (UFG)	3
Federal University of Santa Catarina (UFSC)	2
University of Ribeirão Preto (UNAERP)	2
University of Guarulhos (UNG)	2
Federal University of Amazonas (UFAM)	1
Federal University of Maranhão (UFMA)	1
Federal University of Pelotas (UFPel)	1
Federal University of Rio Grande do Norte (UFRN)	1
Federal University of Rio Grande do Sul (UFRGS)	1
Federal University of Santa Maria (UFSM)	1
Federal University of São Paulo (UNIFESP)	1
Federal University of Uberlândia (UFU)	1
Fluminense Federal University (UFF)	1
Gama Filho University (UGF)	1
Lutheran University of Brazil (ULBRA)	1
Pontifical Catholic University of Minas Gerais (PUC-MG)	1
Pontifical Catholic University of Paraná (PUC-PR)	1
Pontifical Catholic University of Rio Grande do Sul (PUC-RS)	1
Sacred Heart University (USC)	1
State University of Rio de Janeiro (UERJ)	1
University of Cuiabá (UNIC)	1
University of Passo Fundo (UPF)	1
University of Santo Amaro (UNISA)	1
University of Taubaté (UNITAU)	1
University of Uberaba (UNIUBE)	1
Not reported	1

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[1] Correspondence: Prof. Rafael Moraes, Rua Gonçalves Chaves 457, 96015-560 Pelotas, RS, Brazil. Tel: +55-53-32256741 x.135. e-mail: moraesrr@gmail.com