Vernon A. Rosario II (born 1962) is an American psychiatrist and medical historian of human sexuality.
He wrote about attending a 2003 J. Michael Bailey lecture in support of his book tour for The Man Who Would Be Queen.
Rosario, Vernon (2003). New gene theory rests on bad science. Gay & Lesbian Review Worldwide; Nov/Dec 2003, Vol. 10 Issue 6, p. 34 (Archive) https://glreview.org/article/new-gene-theory-rests-on-bad-science/
Vernon Rosario UCLA page (vrosario.bol.ucla.edu)