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Geographic Differences in Semen Quality of Fertile U.S. Males
(Environmental Health Perspectives, 2003-04)
Although geographic variation in semen quality has been reported, this is the first study in the United States to compare semen quality among study centers using standardized methods and strict quality control. We evaluated ...
Chlorination By-Products in Drinking Water and Menstrual Cycle Function
(National Institute of Environmental Health Sciences, 2003-06)
We analyzed data from a prospective study of menstrual cycle function and early pregnancy loss to explore further the effects of trihalomethanes (THM) on reproductive end points. Premenopausal women collected urine samples ...
Semen Quality in Relation to Biomarkers of Pesticide Exposure
(Environmental Health Perspectives, 2003-09)
We previously reported reduced sperm concentration and motility in fertile men in a U.S. agrarian area (Columbia, MO) relative to men from U.S. urban centers (Minneapolis, MN; Los Angeles, CA; New York, NY). In the present ...