ZHAO, Xin. Quantitative Study on Factors Influencing Male Fetal Y Chromosome Concentration Based on Linear Mixed-Effects Models. International Journal of Public Health and Medical Research, [S. l.], v. 6, n. 2, p. 40–50, 2026. DOI: 10.62051/ijphmr.v6n2.05. Disponível em: https://wepub.org/index.php/IJPHMR/article/view/5967. Acesso em: 10 jun. 2026.