We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleNatural variation in the human sex ratio.AuthorsJacobsen R; Møller H; Mouritsen APublicationHuman reproduction (Oxford, England), 1999, Vol 14, Issue 12, p3120ISSN0268-1161Publication typearticleDOI10.1093/humrep/14.12.3120