title: Letter: Obstructive cardiomyopathy.
mesh_terms: D000790:Angiocardiography; D006332:Cardiomegaly / Q000175:diagnosis; D002312:Cardiomyopathy, Hypertrophic / Q000175:diagnosis*; D003287:Contrast Media; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000175:diagnosis
chemical_list: D003287:Contrast Media