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Letters
October 7, 1998

Declines in Population Sex Ratios at Birth

Author Affiliations
 

Margaret A.WinkerMD, Senior EditorIndividualAuthorPhil B.FontanarosaMD, Senior EditorIndividualAuthor

JAMA. 1998;280(13):1139-1141. doi:10-1001/pubs.JAMA-ISSN-0098-7484-280-13-jbk1007
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