Malekpour, Habib, et al. “Is the Addition of Sublingual Melatonin to Omeprazole Superior to Omeprazole Alone in the Management of Gastroesophageal Reflux Disease Symptoms: A Clinical Trial”. Turkish Journal of Gastroenterology, vol. 34, no. 12, Jan. 2023, pp. 1206-11, doi:10.5152/tjg.2023.23021.