Aparicio, G Patellar height ratios in children: an interobserver study of three methods. [electronic resource] - Journal of pediatric orthopedics. Part B Jan 1999 - 29-32 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article ISSN: 1060-152X Subjects--Topical Terms: AdolescentChildFemaleHumansKnee Joint--anatomy & histologyMaleObserver VariationOrthopedics--methodsPatella--anatomy & histologyRadiographySensitivity and Specificity