title: Case 1: An 11-year-old girl with bilateral hip and groin pain.
authors.affiliation: Division of Emergency Medicine, Department of Pediatrics, London Health Sciences Centre, Western University, London, Ontario.
authors.forename: Helen
authors.initials: H
authors.lastname: Levin
authors.affiliation: Division of Emergency Medicine, Department of Pediatrics, London Health Sciences Centre, Western University, London, Ontario.
authors.forename: Rodrick
authors.initials: R
authors.lastname: Lim
authors.affiliation: Division of Emergency Medicine, Department of Pediatrics, London Health Sciences Centre, Western University, London, Ontario.
authors.forename: Gurinder
authors.initials: G
authors.lastname: Sangha