second most common cause of chronic cough Gastroesophageal reflux and chronic cough second most common cause of chronic cough GI Motility Online May 16, 2006 Nature Susan M. Harding, M.D., F.C.C.P., F.A.G.A. GI Motility online (2006) doi:10.1038/gimo77 Gastroesophageal reflux and chronic cough