1. Rees AEJ, Vujanic GM, Williams WM. Epidemic of conjoined twins in Cardiff. British Journal of Obstetrics and Gynaecology. 1993;100(4):388–391. [PubMed]
2. Chitnis S, Derom C, Vlietinck R, Derom R, Monteiro J, Gregersen PK. X chromosome-inactivation patterns confirm the late timing of monoamniotic-MZ twimming. American Journal of Human Genetics.1999;65(2):570–571. [PMC free article] [PubMed]
3. Schnaufer L. Conjoined twins. In: Raffensperger JG, editor. Swenson’s Pediatric Surgery. 4th edition. New York, NY, USA: Appleton Century-Crofts; 1980. pp. 910–920.
4. Abossolo T, Dancoisne P, Tuaillon J, Orvain E, Sommer JC, Rivière JP. Early prenatal diagnosis of asymmetric cephalothoracopagus twins. Journal de gynécologie, obstétrique et biologie de la reproduction.1994;23(1):79–84. [PubMed]
5. Stone JL, Goodrich JT. The craniopagus malformation: classification and implications for surgical separation. Brain. 2006;129(5):1084–1095. [PubMed]
6. Spencer R. Theoretical and analytical embryology of conjoined twins: part I: embryogenesis. Clinical Anatomy. 2000;13(1):36–53. [PubMed]
7. Spencer R. Theoretical and analytical embryology of conjoined twins: part II: adjustments to union.Clinical Anatomy. 2000;13(2):97–120. [PubMed]
8. Hubinont C, Kollmann P, Malvaux V, Donnez J, Bernard P. First-trimester diagnosis of conjoined twins.Fetal Diagnosis and Therapy. 1997;12(3):185–187. [PubMed]
9. Kuroda K, Kamei Y, Kozuma S, et al. Prenatal evaluation of cephalopagus conjoined twins by means of three-dimensional ultrasound at 13 weeks of pregnancy. Ultrasound in Obstetrics and Gynecology.2000;16(3):264–266. [PubMed]
10. Kingston CA, McHugh K, Kumaradevan J, Kiely EM, Spitz L. Imaging in the preoperative assessment of conjoined twins. Radiographics. 2001;21(5):1187–1208. [PubMed]