Systematic assessment of the sex ratio at birth for all countries and estimation of national imbalances and regional reference levels

Population and fertility by age and sex for 195 countries and territories, 1950–2017: a systematic analysis for the Global Burden of Disease Study 2017

(2018) Christopher J L Murray et al.   LANCET

Falling sex ratios and emerging evidence of sex-selective abortion in Nepal: evidence from nationally representative survey data

(2013) Melanie Dawn Frost et al.   BMJ Open

Does famine influence sex ratio at birth? Evidence from the 1959-1961 Great Leap Forward Famine in China

(2012) S. Song   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES

The Association Between Living Through a Prolonged Economic Depression and the Male:Female Birth Ratio--A Longitudinal Study From Cuba, 1960-2008

(2011) S. J. Venero Fernandez et al.   AMERICAN JOURNAL OF EPIDEMIOLOGY

Poisson Variations of the Sex Ratio at Birth in African Demographic Surveys

(2009) Michel Garenne   HUMAN BIOLOGY

Trends in US sex ratio by plurality, gestational age and race/ethnicity 

(2009) A. M. Branum et al.   HUMAN REPRODUCTION

Recent Increase in Sex Ratio at Birth in Viet Nam

(2009) Christophe Z. Guilmoto et al.   PLoS One