1Spitz L, Kiely EM, Pierro A. Conjoined twins [ M]. 7th ed. Philadelphia : Elsevier Saunders ,2012.
2Canty TG Sr, Mainwaring R,Vecchione T, et al. Separation of omphalopagus twins: unique resconstruction using syngenetic cryopreserved tissue[J]. J Pediatr Surg,1998,33(5):750.
3Wen X,Parajuly SS,Lu Q, et al. Thoraco-omphalopagus con- joined twins: impact of ultrasound assessment on successful surgical separation[ J]. Clin Imaging, 2013,37( 1 ):138.