[1] Univ Montreal, Dept Surg, Div Otolaryngol Head & Neck Surg, Montreal, PQ, Canada
[2] Univ Montreal, Fac Med, Montreal, PQ, Canada
[3] Univ Guelph, Dept Psychol, Guelph, ON, Canada
[4] McMaster Childrens Hosp, Pediat Chron Pain Program, Hamilton, ON, Canada
[5] CHU Sainte Justine, Div Pediat Otolaryngol Head & Neck Surg, Montreal, PQ, Canada
[6] Univ Montreal, Fac Med, Dept Paediat, Montreal, PQ, Canada
[7] CHU Sainte Justine, Dept Paediat, Montreal, PQ, Canada
[8] CHU Sainte Justine, CHU Sainte Justine Res Inst, Montreal, PQ, Canada
[9] Sainte Justine Univ Hosp Ctr, Div Pediat Otolaryngol Head & Neck Surg, 3175 Cote Sainte Catherine, Montreal, PQ H3T 1C5, Canada