title: Rare x rare.
authors.affiliation: Veterans Affairs Medical Center, West Roxbury, MA 02132.
authors.forename: G E
authors.initials: GE
authors.lastname: Thibault
mesh_terms: D000368:Aged; D000686:Amyloidosis / Q000175:diagnosis*; D000787:Angina Pectoris / Q000175:diagnosis; D009202:Cardiomyopathies / Q000175:diagnosis*; D003327:Coronary Disease / Q000175:diagnosis; D003937:Diagnosis, Differential; D004417:Dyspnea / Q000175:diagnosis; D006801:Humans; D008297:Male; D011340:Problem Solving