Echocardiographic findings in endurance athletes with hypertrophic non-obstructive cardiomyopathy (HNCM) compared to non-athletes with HNCM and to physiological hypertrophy (athlete's heart). - Dickhuth,H.H.; Rocker,K.; Hipp,A.; Heitkamp,H.C.; Keul,J. (Int J Sports Med, 1994)