1. Avascular necrosis of bone;Zizic;Curr Opin Rheumatol,1990
2. Osteonecrosis;Zizic;Curr Opin Rheumatol,1991
3. Notraumatic necrosis of bone;Mankin;N Engl J Med,1992
4. Avascular necrosis and related conditions;Mandell;Top Magnetic Res Imag,1991
5. Osteonecrosis;Steinberg,1989