@article{articlee1afd0a8, title = {Reflux esophagitis and gastroesophageal reflux disease: a cross-sectional study of gastroesophageal reflux disease patients by age group}, author = {Flora Filho, Rowilson and Zilberstein, Bruno}, year = {1999}, doi = {10.1590/s0041-87811999000200006}, journal = {Revista do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo} }