@article{azzam_2018,  title={ARE THE PERSISTENT SYMPTOMS TO PROTON PUMP INHIBITOR THERAPY DUE TO REFRACTORY GASTROESOPHAGEAL REFLUX DISEASE OR TO OTHER DISORDERS?},  volume={55},  ISSN={0004-2803},  url={https://doi.org/10.1590/S0004-2803.201800000-48},  DOI={10.1590/S0004-2803.201800000-48},  journal={Arquivos de Gastroenterologia},  publisher={Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologia e Outras Especialidades - IBEPEGE. },  author={AZZAM, Rimon Sobhi},  year={2018},  month={Nov},  pages={85–91} }