by Giroud, Didier, Li, Jian M., Urban, Philip, Meier, Bernhard, Rutishauser, Wilhelm
Published in The American journal of cardiology (15.03.1992)

by Giroud, Didier, Goy, Jean-Jacques
Published in International journal of cardiology (01.02.1990)

by Li, J M, Camenzind, E, Meier, B, Urban, P, Giroud, D, Rutishauser, W
Published in Journal of interventional cardiology (01.06.1994)