Study notes decline in male births in the US and Japan

A study published in this week’s online edition of Environmental Health Perspectives reports that during the past thirty years, the number of male births has decreased each year in the U.S. and Japan.

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<p><a href="http://www.physorg.com/news95336450.html">Study notes decline in male births in the US and Japan</a></p> <p>A study published in this week’s online edition of <i>Environmental Health Perspectives</i> reports that during the past thirty years, the number of male births has decreased each year in the U.S. and Japan.</p>