TY - JOUR AU - Sundaram, N A; Murphy, J C TI - Heterotopic bone formation following total hip arthroplasty in ankylosing spondylitis JO - Clin Orthop Relat Res PY - 1986 L3 - PubMed-ID: 3955952 SP - 223 EP - 226 N1 - ;(207): ER -