Lubis, Masrul, Division of Gastroentero-Hepatology, Department of Internal Medicine, Universitas Sumatera Utara, Medan, Indonesia

• Vol 24, No 2 (2023): VOLUME 24, NUMBER 2, August, 2023 - Original Articles
  Incidence and Characteristic of Gastroesophageal Reflux Disease (GERD): Before and During Covid-19 Pandemic
  Abstract  PDF