Symptom dynamics.
D003680:Deglutition Disorders / Q000209:etiology / Q000503:physiopathology; D004935:Esophageal Diseases / Q000175:diagnosis* / Q000503:physiopathology; D005764:Gastroesophageal Reflux / Q000209:etiology / Q000503:physiopathology; D006801:Humans; D010146:Pain / Q000145:classification / Q000209:etiology