[1] Scottish Rite Children, Dept Orthoped, 2222 Welborn St, Dallas, TX 75219 USA
[2] Univ Louisville, Sch Med, Louisville, KY USA
[3] Univ Washington, Seattle Childrens Hosp, Dept Orthoped & Sports Med, Seattle, WA 98195 USA
[4] Johns Hopkins Univ, Sch Med, Dept Orthopaed Surg, Baltimore, MD USA
[5] Univ British Columbia, Dept Orthopaed, Vancouver, BC, Canada
[6] Univ Montreal, Dept Surg, Montreal, PQ, Canada
[7] Rady Childrens Hosp, Div Orthoped & Scoliosis, San Diego, CA USA
[8] Childrens Hosp Philadelphia, Div Orthopaed, Philadelphia, PA USA
[9] Shriners Childrens Philadelphia, Dept Pediat Orthoped Surg, Philadelphia, PA USA
[10] Loma Linda Univ, Sch Med, Loma Linda, CA USA