 4.2. CST logistics The CST is a manualized program comprised of ten 3-hour sessions 30 hours spread over four to five months. Each training group will include three physicians. The training will be conducted at locations and times choosen by the physicians within each group. The trainer of the experimental group will be an experienced facilitator who will conduct all training sessions Y.L.. The training timetable will not include more than two 3-hours sessions in one day. Physicians will have the opportunity to register in groups of three or individually. In the latter case, physicians will be assigned to groups according to geographical proximity. 