Chest pain: heart? gullet? both? neither?
D003327:Coronary Disease / Q000175:diagnosis* / Q000209:etiology; D003937:Diagnosis, Differential; D004935:Esophageal Diseases / Q000150:complications*; D006801:Humans; D010146:Pain / Q000175:diagnosis* / Q000209:etiology; D013909:Thorax