by Ehrbar, Hans-Ulrich, Bauerfeind, Peter, Dutly, Fabrizio, Koelz, Hans-Rudolf, Altwegg, Martin
Published in The Lancet (British edition) (26.06.1999)

by Meyenberger, Christa, Michel, Claudia, Metzger, Urs, Koelz, Hans-Rudolf
Published in Gastrointestinal endoscopy (01.05.1996)

by Peter, Ulrich, Honegger, Hanspeter, Koelz, Hans Rudolf
Published in Digestion (01.12.2007)

by Peter, Ulrich, Honegger, Hanspeter, Koelz, Hans Rudolf
Published in Digestion (01.01.2007)

by PENNING-VAN BEEST, Fernie, ERKENS, Joëlle, PETERSEN, Karl-Uwe, KOELZ, Hans Rudolf, HERINGS, Ron
Published in European journal of clinical pharmacology (01.07.2005)

by Bauerfeind, Peter, Koelz, Hans-Rudolf, Altwegg, Martin
Published in The Lancet (British edition) (01.10.1999)