1. Orthopaedic Department, Begin Military Teaching Hospital, 69 Avenue de Paris, 94160 Saint Mandé, France.
2. Intensive Unit Care, Percy Military Teaching Hospital, 101 Avenue de Henri Barbusse, 92140 Clamart, France.
3. Military Medical Center of Vincennes, Fort Neuf de Vincennes, Cours de Maréchaux, 75614 Paris Cedex 12, France.
4. Visceral Surgery Department, Percy Military Teaching Hospital, 101 Avenue de Henri Barbusse, 92140 Clamart, France.
5. Visceral Surgery Department, Begin Military Hospital, 69 Avenue de Paris, 94160 Saint-Mandé, France.