Hegar, Badriul, and Yvan Vandenplas. “Evaluation and Management of the Pediatric Patients With Suspected Gastroesophageal Reflux Diseases”. The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy, vol. 12, no. 3, Jan. 2011, pp. 171-8, doi:10.24871/1232011171-178.