The European Society of Coloproctology (ESCP) – www.escp.eu.com

Association of Coloproctology of Great Britain and Ireland (ACPGBI) – www.acpgbi.org.uk

Service de chirurgie viscérale, CHUV, CH 1011 Lausanne –  www.chirurgieviscerale.ch

Swiss Study Group for Coloproctology –  www.coloproct.ch

M&S Event Services SA –  www.ms-event.ch