Cite
MLA Citation
et al.. “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.” Lancet, vol. 392, no. 10159, 2018, pp. 1995–2051. http://access.bl.uk/ark:/81055/vdc_100101273917.0x00002e