• Avascular Necrosis - Offers a personal story since contracting this disease. Including information and a diary.
• Dr Yoon's Osteonecrosis Clinic - Describes information about osteonecrosis (avascular necrosis aseptic necrosis AVN ON) of femoral head which is a disabling disease developed in the hip joint.
• Kienbock's Disease - Australia - A support and information group in Australia interacting by message or chat room for people with avascular necrosis of the lunate.
• Legg Perthes Support Group International - Part of the National Osteonecrosis Foundation, offering encouragement, medical information, online discussions and a message board.
• Osteonecrosis Listserver - Internet forum for osteonecrosis (also called avascular necrosis) offering information and support.

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