title: Letter: Mitral-valve clefts and insufficiency.
mesh_terms: D003937:Diagnosis, Differential; D006344:Heart Septal Defects, Atrial / Q000150:complications; D006801:Humans; D008943:Mitral Valve / Q000002:abnormalities*; D008944:Mitral Valve Insufficiency / Q000150:complications* / Q000175:diagnosis