juvenile osteochondrosis of hip and/or pelvis, Legg-CALVE-Perthes disease, juvenile osteochond-hip/pelvis, coxa plana, Legg-Calvé-Perthes disease, Perthes disease, Legg Calvé Perthes Disease, Calve - Perthes' disease, aseptic necrosis of the capital femoral epiphysis, osteochondritis of the capital femoral epiphysis, juvenile osteochondrosis of hip and pelvis, osteochondrosis of Legg-Calve-Perthes, Osteochondrosis of the capital femoral epiphysis, Legg-Perthes disease, Legg-Calve-Perthes symptom, Legg-Calve-Perthes syndrome, Perthe's disease, Legg-Calve-Perthes disease, pseudocoxalgia, Pseudocoxalgia