Global rates of infertility remain unchanged over past 2 decades (EurekAlert, 18 December 2012)

Clever gene construct combats metabolic syndrome (Medical Xpress, 18 December 2012)

More brothers could mean faster sperm and better fertility (University of Sheffield press release, 19 December 2012)

19 Dec 2012

A study published in the Asian Journal of Andrology associates the swimming speed of the sperm of 500 men undergoing semen analysis as part of fertility investigations with the sex bias of the subject's siblings.

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