Prediction of preeclampsia with the determination of serum homocysteine: A single-center observational study. Actas Médicas (Ecuador), [S. l.], v. 33, n. 2, p. 137–141, 2023. DOI: 10.61284/134. Disponível em: https://actasmedicas.ec/index.php/am/article/view/134.. Acesso em: 25 may. 2026.