Chmielewski, Piotr Paweł, Aleksandra Żebrak, and Sławomir Kozieł. “Exploring the Effects of Birth Order on Human Lifespan in Polish Historical Populations, 1738–1968”. Anthropological Review 84, no. 4 (December 30, 2021): 383–394. Accessed July 22, 2024. https://czasopisma.uni.lodz.pl/ar/article/view/12262.