Professor Jan Vojacek operates as the Vice-chief of the Department of Cardiac Surgery, University Hospital Hradec Kralove, Medical Faculty Hradec Kralove, Charles University in Prague. He is also a consultant in vascular and cardiac surgery, and is an active member of many societies, including The European Society for Vascular Surgery, the European Association for Cardio-Thoracic Surgery, and acts as an Honorary member of Peruvian Society for Thoracic and Cardiovascular Surgery. He is the author or co-author of over 65 scientific papers, author of chapters in two foreign language textbooks, and author of many international lectures. He specialises in reconstructive valve surgery.Professor Pavel Zacek works as a consultant cardiac surgeon for adult cardiac surgery. He also teaches medical students at the Faculty of Medicine in Hradec Kralove. He is the author and co-author of 107 papers and a main author of a multimedia electronic textbook Interactive Cardiac Surgery, Springer Heidelberg 2005, and co-author of Heart Valve Surgery - An Illustrated Guide, Springer Heidelberg 2010. Professor Jan Dominik specialises in heart valve surgery. He is the author of the textbook Kardiochirurgie (Karolinum, Prague, 1997) and the monograph Kardiochirurgie (Grada Publishing, Prague, 1998), and a co-author of Interactive Cardiac Surgery (Springer, 2005), author of Chirurgie srdecních chlopní (Grada, 2008) and Heart Valve Surgery (An Illustrated Guide), Springer Heidelberg 2010. He is the Honorary Member of the Czech Society of Cardiology and a fellow of several international scientific societies.Between 1991 and 2005 he was the Head of the Department of Cardiac Surgery, Charles University Hospital, Hradec Kralove, Czech Republic, and between 1997 and 2003 he was also the vice-dean of the Faculty of Medicine in Hradec Králové.