Jozkow, P, D Wasko-Czopnik, K Dunajska, M Medras, and L Paradowski. “The Relationship Between Gastroesophageal Reflux Disease and the Level of Physical Activity”. Swiss Medical Weekly 137, no. 3334 (August 25, 2007): 465–465. Accessed May 13, 2024. https://smw.ch/index.php/smw/article/view/767.