Several studies over the past 20 years have suggested that thequality of semen is declining in industrialized countries throughoutthe world, arousing concern about male fertility in the future.The study reported by Auger et al.1 in this issue of the Journalemphasizes this concern again. It would seem prudent, however,to ask whether sperm counts and male fertility are in fact declining.
Unfortunately, the literature on this subject is not based onprospective studies designed to assess changes in semen qualityand male fertility among members of the general population.In large part, the data gathered by Auger . . . [Full Text of this Article]
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