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Military Health System

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This is a test of the sitewide banner capability. In the case of an emergency, site visitors would be able to visit the news page for addition information.

Articles by Clinton Hall, PhD; Anna T. Bukowinski, MPH; Kathleen E. Kramer, MD (LT, USN); Ava Marie S. Conlin, DO, MPH

Offspring Sex Ratio of Male Active Duty U.S. Navy Submariners, 2001–2015

Navy submariner (Photo Courtesy: U.S. Marine Corps)

The natural human sex ratio at birth (male:female) slightly favors males, and altered sex ratios might be indicative of exposure to reproductive hazards.

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Last Updated: July 01, 2019
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