1. The long-term results of low-friction arthroplasty of the hip performed as a primary intervention;Charnley;J Bone and Joint Surg,1972
2. Ectopic ossification following total hip replacement: incidence and a method of classification;Brooker;J Bone Joint Surg,1973
3. Myositis ossificans following total hip replacement;Matos;J Bone Joint Surg,1975
4. Ectopic bone formation following low friction arthroplasty of the hip;DeLee;Clin Orthop,1976
5. Heterotopic ossification: theoretical consideration, possible etiologic factors, and a clinical review of total hip arthroplasty patients exhibiting this phenomenon;Jowsey,1977