[1] INSERM, UMR 1086, ANTICIPE, Interdisciplinary Res Unit Canc Treatment & Preve, Av Gen Harris, F-14076 Caen 05, France
[2] Univ Normandy, Av Gen Harris, F-14076 Caen 05, France
[3] Bayeux Hosp, Pain Assessment & Treatment Ctr, Bayeux, France
[4] Reg Pain Network Lower Normandy, Bayeux, France
[5] Ctr Francois Baclesse, Clin Res Unit, Caen, France
[6] Pharm Croix Or, Paris, France
[7] Lisieux Hosp, Pain & Palliat Care Unit, Lisieux, France
[8] Alencon Mamers Intercommunal Hosp, Pain Assessment & Treatment Consultat, Alencon, France
[9] Ctr Francois Baclesse, Pain & Palliat Care Unit, Caen, France
[10] Univ Hosp, Pain & Palliat Care Unit, Caen, France
[11] Avranches Granville Hosp, Pain Assessment & Treatment Ctr, Avranches, France