4Wasadikar PP,Kulkarni AB.Intestinal obstruction due to ascariasis[J].Br J Surg,1997,84(3):410-412.
5Alford BA,McIlhenny J.The newborn and young infants[A].In:Grainger RG,Allison DJ,editors.Diagnostic raiology-a textbook of medical imaging[M].3rd edn.New York:Churchill Livigstone,1997.1109.
7Cohen HL,Zinn HL,Haller JO,et al.Ultrasonography of pylorospasm:findings may simulate hypertophic pyloric stenosis[J].J Ultrasoumd Med,1998,17(11):705-711.
8Swischuk LE,Hayden CK Jr,Stansberry SD.Sonographic pitfalls in imaging of the antro-pyloric region in infants[J].Radiographics,1989,9(3):437-447.
9Swischuck LE.Alimentary tract[A].In:Radiology of the newborn infant and young child[M].3rd edn.Baltimore:Williams Wilikins,1989.396.
10Patino MO,Munden MM.Utility of the sonographic whirlpool sign in diagnosing midgut volvulus in patients with atypical clinical presentations[J].J Ultrasound Med,2004,23(3):397-401.
