1. Codeine induces increased resistance at the esophagogastric junction but has no effect on motility and bolus flow in the pharynx and upper esophageal sphincter in healthy volunteers: A randomized, double‐blind, placebo‐controlled, cross‐over trial. Issue 5 (24th November 2020) Authors: Geeraerts, Annelies; Geysen, Hannelore; Ballet, Lisa; Hofmans, Claudia; Clevers, Egbert; Omari, Taher; Manolakis, Anastassios C.; Mols, Raf; Augustijns, Patrick; Vanuytsel, Tim; Rommel, Nathalie; Tack, Jan; Pauwels, Ans Journal: Neurogastroenterology & motility Issue: Volume 33:Issue 5(2021) Page Start: n/a Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗