[1] Johns Hopkins Univ, Dept Orthopaed Surg, 601 North Caroline St, Baltimore, MD 21287 USA
[2] Nemours Alfred I DuPont Hosp Children, Dept Orthopaed Surg, Wilmington, DE USA
[3] Univ Toronto, Dept Orthopaed Surg, Toronto, ON, Canada
[4] Hosp Sick Children, Toronto, ON, Canada
[5] Childrens Hosp Philadelphia, Dept Orthopaed Surg, Philadelphia, PA USA
[6] Shriners Hosp Children, Dept Orthopaed Surg, Philadelphia, PA USA
[7] Seattle Childrens Hosp, Dept Orthoped & Sports Med, Seattle, WA USA
[8] Univ Washington, Seattle, WA USA
[9] Johns Hopkins Univ, Sch Med, Dept Anesthesiol & Crit Care Med, Baltimore, MD USA
[10] Setting Scoliosis Straight, El Cajon, CA USA