[1] Univ Laval, Ctr Rech CHU Quebec, Quebec City, PQ, Canada
[2] Univ Laval, Dept Med Urgence, CHU Quebec, Quebec City, PQ, Canada
[3] Ctr Hosp Univ Edouard Herriot, Hosp Civils Lyon, F-69003 Lyon, France
[4] CHU Quebec, Hop Enfant Jesus, Rue,H-608,1401,18, Quebec City, PQ G1J 1Z4, Canada