Who counts as a man, who counts as a woman
Source: Grand Valley State University (http://www.sciencedaily.com/releases/2013/10/131028134949.htm)
Author: L. Westbrook, K. Schilt
Posted: October 28, 2013
"Gender is no longer determined solely by biological factors, according to a new study that examined various case studies. Results indicate that biological factors, such as genitals and chromosomes, used to be the ultimate determiner of gender, but that is slowly changing."