TY - JOUR AU - Lazzara, D. AU - Di Muria, G. AU - Marcucci, M. AU - Trombetta, A. DO - doi:10.1302/0301-620X.91BSUPP_I.0910139c UR - https://doi.org/10.1302/0301-620X.91BSUPP_I.0910139c TI - PERTHES DISEASE. A COMPARISON BETWEEN CONSERVATIVE AND SURGICAL TREATMENT AFTER AN AVERAGE F.U. PERIOD OF 25 YEARS. T2 - Orthopaedic Proceedings VL - 91-B IS - SUPP_I PY - 2009 SP - 139 EP - 139 ER -