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Nature 395, 828 (29 October 1998) | doi:10.1038/27500

... while Japan studies drop in sperm counts

Alison Abbott

Japan's Ministry of Health and Welfare announced last week that it is to sponsor a nationwide study of sperm counts. The move follows public concern over the possible effects of endocrine disruptors — man-made chemicals suspected of disrupting human reproductive functions — on male fertility (see above).