1. PotterE.L., In: Pathology of the Fetus and the Infant. PotterE.L., CraigJ.M. eds. Year Book Med Pubs, Chicago 1975; 220.
2. Studies on symmetrically conjoined twins
3. Separation of conjoined twins in the newborn period
4. KingL.R. In: Swenson's Pediatric Surgery, 4th Ed. RaffenspergerJ.G. ed. Appleton-Century-Crofts, New York 1980; 753.
5. KaiserI.H. In: Textbook of Obstetrics & Gynecology, Dan forthD.N. ed. Harper and Row, New York 1966; 239.