Sperm Counts Updated | Psychology Today

[unable to retrieve full-text content]Complementing these findings, in 2010 andrologist Trevor Cooper and colleagues examined semen samples from almost 5,000 men in 14 countries spread across four continents to provide reference values for the World ...

Source: http://www.psychologytoday.com/blog/how-we-do-it/201305/sperm-counts-updated

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