MEYERS, M. Osteonecrosis of the Femoral Head. Clin. Orthop. 1988, 231, 51-61
BRADWAY, J. The Natural History of the Silent Hip in Bilateral Atraumatic Osteonecrosis. The Journal of Arthroplasty. 1993, 8, 4, 383-387
MULLIKEN, B. Prevalence of Previously Undetected Osteonecrosis of the Femoral Head in Renal Transplant Recipients. Muscuroskeletal Radiology. 1994, 9, 831-834