Majority of symptoms in esophageal reflux PPI non-responders are not related to reflux.
Roman S, Keefer L, Imam H, Korrapati P, Mogni B, Eident K, Friesen L, Kahrilas PJ, Martinovich Z, Pandolfino JE.
Roman S, et al. Among authors: keefer l.
Neurogastroenterol Motil. 2015 Nov;27(11):1667-74. doi: 10.1111/nmo.12666. Epub 2015 Sep 4.
Neurogastroenterol Motil. 2015.
PMID: 26337396
Free PMC article.