TY - GEN AU - Matta,J M TI - MRI and avascular necrosis SN - 0890-5339 PY - 1999///1103 KW - Femur Head Necrosis KW - diagnosis KW - Humans KW - Magnetic Resonance Imaging N1 - Publication Type: Comment; Letter UR - https://doi.org/10.1097/00005131-199909000-00025 ER -