Saritas Yuksel, E., and M. Vaezi. “Extraesophageal Manifestations of Gastroesophageal Reflux Disease: Cough, Asthma, Laryngitis, Chest Pain”. Swiss Medical Weekly, vol. 142, no. 1112, Mar. 2012, p. w13544, doi:10.4414/smw.2012.13544.