Early changes in systolic and diastolic function at rest and under exercise in patients with hypertrophic cardiomyopathy after myectomy. - Schwartzkopff,B.; Stark,P.; Schulte,H.D.; Mundhenke,M.; Klein,R.M.; Lösse,B.; Vester,E.G.; Strauer,B.E. (Z Kardiol, 1997)