title: Oesophageal acid-perfusion in the diagnosis of precordial pain.
mesh_terms: D000787:Angina Pectoris / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004941:Esophagitis / Q000175:diagnosis*; D005764:Gastroesophageal Reflux / Q000175:diagnosis*; D006801:Humans; D006851:Hydrochloric Acid; D010477:Perfusion
chemical_list: D006851:Hydrochloric Acid