Sources list for IDENTICAL TWINS

"Study of Identical Twins Separated at Birth and Reunited Later in Life." Apr. 17, 2003. <http://www.modcult.brown.edu/students/angell/twinstudy.html>
Nature vs. Nurture

U.S. Department of Justice. "What is Identity Theft?" Identity Theft and Identity Fraud. Washington, D.C.: U.S. Government Printing Office, June 2000.
Identity Theft

Helm, Heather. "Studies Dealing With Twins." Apr. 17, 2003. <http://www.ux1.eiu.edu/~cxtdm/twins.html>
Nature vs. Nurture

Torgersen, S., Onstad, S., & Skre, I. (1993). "True" schizotypal personality disorder: A study of co-twins and relatives of schizophrenic probands. American Journal of Psychiatry, 150, 1661-1667.
Bipolar Disorder and Twins

Heyes, Cressida. "Identity Politics." The stanford Encyclopedia of philosophy. Ed. Edward N. Zalta. p. 4,8 <[1]http://plato.stanford.edu/archives/fall2002/entries/identity-politics/> (accessed: 22 March 2005).
Identity in Poetry