TY  - JOUR 
T1  - Efficacy, safety, quality control, marketing and regulatory guidelines for herbal medicines (phytotherapeutic agents)
JO  - Brazilian Journal of Medical and Biological Research
A1  - Calixto, J.B.
SN  - 0100-879X
UL  - 10.1590/S0100-879X2000000200004
VL  - 33 
Y1  - 2000
PB  - Brazil 
ER  -