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Published in 2017 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.1705895114
Abstract: Significance Gay men have, on average, a greater number of older brothers than do heterosexual men, a well-known finding within sexual science. This finding has been termed the fraternal birth order effect. Strong scientific interest…
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Keywords:
maternal immune;
linked protein;
sexual orientation;
older brothers ... See more keywords