Left Ventricular Mass and Oxygen Uptake in Top Handball Athletes - van Buuren, F.; Mellwig, K. P.; Butz, T.; Langer, C.; Prinz, C.; Fruend, A.; Kottmann, T.; Bogunovic, N.; Dahm, J. B.; Faber, L.; Horstkotte, D. (International Journal of Sports Medicine, 2013)