@article{liu_wang_liu_2016,  title={Meta-analysis of the efficacy of proton pump inhibitors for the symptoms of laryngopharyngeal reflux},  volume={49},  ISSN={0100-879X},  url={https://doi.org/10.1590/1414-431X20165149},  DOI={10.1590/1414-431X20165149},  number={7},  journal={Brazilian Journal of Medical and Biological Research},  publisher={Associação Brasileira de Divulgação Científica},  author={Liu, C. and Wang, H. and Liu, K.},  year={2016},  pages={e5149} }