See this online ebook:
Lawrence S. Mayer, M.B., M.S., Ph.D. and Paul R. McHugh, M.D., Sexuality and Gender: Findings from the Biological, Psychological, and Social Sciences, in The New Atlantis, Number 50 (Fall 2016): pp. 1-143. May be read online, and available in pdf format, at The New Atlantis.
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