Contributor biographical information for Between XX and XY : intersexuality and the myth of two sexes / Gerald N. Callahan.

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Gerald N. Callahan, PhD, is an author and an immunologist/pathologist with more than 30 years of experience in biomedical research. He is the author of Infection: The Uninvited Universe and Faith, Madness, and Spontaneous Combustion. He is currently an associate professor at Colorado State University. He lives in Fort Collins, Colorado.


Library of Congress subject headings for this publication:
Gender identity disorders.
Gender identity.