Osteopetrosis Support Trust Providing information and advice for families with children with the bone and blood disease, osteopetrosis.
Pediatric Rheumatology Home Page A resource for families and health professionals caring for children with arthritis, lupus, scleroderma, kawasaki disease, SLE.
Perthes Association Information and support for parents of children with Perthes disease and related conditions, including all forms of osteochondritis.