Havndrup O, Bundgaard H, Andersen P S, Larsen L A, Vuust J, Kjeldsen K, Christiansen M
Department of Medicine B, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
Am J Cardiol. 2001 Jun 1;87(11):1315-7. doi: 10.1016/s0002-9149(01)01532-6.