Opening of the cardia and hiatus hernia.
D000818:Animals; D055592:Biophysical Phenomena; D001703:Biophysics; D002299:Cardia / Q000502:physiology*; D002769:Cholelithiasis / Q000150:complications; D002933:Cineradiography; D003679:Deglutition / Q000502:physiology; D004285:Dogs; D004941:Esophagitis / Q000150:complications; D005260:Female; D005764:Gastroesophageal Reflux / Q000150:complications; D006548:Hernia, Diaphragmatic / Q000209:etiology*; D006801:Humans; D010437:Peptic Ulcer / Q000150:complications; D011247:Pregnancy; D011248:Pregnancy Complications; D011312:Pressure; D014839:Vomiting / Q000150:complications