STENMAN , Ulf-Håkan. 6.1.1.2 Quality Specifications for Determinations of HCG and Related Substances. Upsala Journal of Medical Sciences, [S. l.], v. 98, n. 3, p. 283–291, 1993. DOI: 10.3109/03009739309179322. Disponível em: https://ujms.net/index.php/ujms/article/view/7484. Acesso em: 10 nov. 2026.