2Brand A, Alves M, Saraiva C, et al. Fetus in fetus diagnos tic criteria and differential diagnosis-a case report and litera ture review[J]. J PediatrSurg, 200.1, 39(4): 616 -618.
3Willis RA.The structure of teratomata[J].J Pathol Bacteri- ol,1935,40(1)1-36.
4Brand A,Alves MC,Saraviva C,et al.Fetus in fetu-diagnos- tic criteria and differential diagnosis-a case report and litera- ture review[J].J Pediatr Surg,2004,39(4):616-618.
5Kin JW,Park SH,Park SS,et al.Fetus-in-fetu in the crani- um of a 4-month-old boy:histopathology and short tandem repeat polymorphism-based genotyping.Case report[J].J Neurosurg Pediatr,2008,1(5):410-414.
6Dagradi AD,Mangiante GLjSerio GE,et al.Fetus-in-fetu removal in a 47-year-old man[J].Siu^eiy,1992,112(3):598-692.
7Huang Y,Zhang Q,Feng JF,et al.Fetus in fetu:A rare presentation[J].J Res Med Sci,2013,18(10):924-925.
8Pourang H,Sarmadi S,Mireskandari SM,et al.Twin fetus in fetu with immature teratoma:a case report and review of the literature[J].Arch Iranian Med,2009,12(5):507-510.