5Rein AJ, Mokhodion S, Nir A. significance ofa eardiaemurtour as the sole clinical sign in the newborn[J]. Clin Pediatr,2002,39(9):511-513.
6American Academy of Pediatrics. Clinical practice guideline: early detection of developmental dysplasia of the hip[J]. Pediatrics,2000,105 : 896-905.
7James GW.Evidence-based orthopaedics:the best answers to clinical questions.Philadelphia:Saunders,2009:258-263.
8Gray A,Elbourne D,Dezateux C,et al.Economic evaluation of ultrasonography in the diagnosis and management of developmental hip dysplasia in the United Kingdom and Ireland.J Bone Joint Surg(Am),2005,87(11):2472-2479.
9Barlow TG.Early diagnosis and treatment of congenital dislocation of the hip.J Bone Joint Surg(Br),1962,44(2):292-301.
10Marks DS,Clegg J,Al-Chalabi AN.Routine ultrasound screening for neonatal hip instability.Can it abolish late-presenting congenital dislocation of the hip? J Bone Joint Surg(Br),1994,76(4):534-538.
