TY - RPRT TI - Intraobserver and interobserver reliability of Kalamchi and Macewen's classification system for evaluation of avascular necrosis of the femoral head in developmental hip dysplasia. AU - H Omeroglu AU - Y Tumer AU - A Bicimoglu AU - H Agus PY - 1999 UR - https://pubmed.ncbi.nlm.nih.gov/10711368/ ID - 10711368 ER -