1. Digit ratio, a proposed marker of the prenatal hormone environment, is not associated with prenatal sex steroids, anogenital distance, or gender-typed play behavior in preschool age children;Barrett;Journal of Developmental Origins of Health and Disease,2020
2. Hypotheses on mammalian sex ratio variation at birth;James;J. Theor. Biol.,1998
3. Sex ratios at birth in populations of Eastern and Southern Africa;Garenne;Southern African Journal of Demography,2004
4. Can biological factors like Hepatitis B explain the bulk of gender imbalance in China? A review of the evidence;Das Gupta;World Bank Res. Obs.,2008
5. Natural selection of parental ability to vary the sex ratio of offspring;Trivers;Science,1973