Professor of colorectal surgery El Faisal school of medicine Consultant colorectal surgeon. King Faisal specialized hospital and research center.

Head of the Colorectal unit at the Magellan Surgical Center from Haut-Lévèque Hospital in Bordeaux, France. He is a First Class University Professor since 2001.

MD, MBA, FACS, FASCRS is a board-certified general surgeon and colon and rectal surgeon Director – Colon and Rectal Surgery of Surgery – Colorectal Surgery, Huntington Hospital. Director – Surgical Services of Surgery – Colorectal Surgery, Huntington Hospital.Professor, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell.

Graduated from the Welsh National School of Medicine in 1968. He became a Fellow of The Royal College of Surgeons of England in 1973 Consultant Colorectal Surgeon since 2008

Professor of Surgery and the Head of the Section of Coloproctology, at the University of Erlangen, Germany. Professor Matzel graduated from Medical School University Erlangen. He performed the first implants in 1994 and was instrumental in developing and teaching the technique worldwide.

The chairman of colorectal surgery Department at the University of Illinois in Chicago.

Head Section, Colon & Rectal Surgery King Faisal Specialist Hospital & Research Center-Riyadh President, Saudi Society of Colon and Rectal Surgery Cheif Editor of World Journal of Colorectal Surgery.

Chairman of the Colorectal Cancer Programme at The Champalimaud Institute, Lisbon, a Trustee of the Pelican Centre, Basingstoke Hospital, UK and Chairman of The European Academy of Robotic Colorectal Surgeons.

Professor of colorectal surgery consultant surgeon, Cleveland clinic foundation,Ohio.

Klinisk professor, Mave- og Tarmkirurgi, Aarhus Universitets hospital.