1. Pygopagus conjoined twins;Gupta;British Medical Journal,1966
2. Multiple pregnancy (First of two parts);Benirschke;New England Journal of Medicine,1973
3. Multiple pregnancy (Second of two parts);Benirschke;New England Journal of Medicine,1973
4. Conjoined twins: Nosology and congenital malformations;Benirschke;Birth Defects: Original Article Series,1978
5. Benirschke, Temple, Bloor, “Conjoined twins,” 179–192.