SERUDJI, Joserizal; HELGA, Helga; BACHTIAR, Hafni. RESEARCH Difference in Mean Levels of Calcium Magnesium Ratio and Sodium Potassium Ratio of Maternal Serum Between Severe Preeclampsia and Eclampsia. Andalas Obstetrics And Gynecology Journal, [S. l.], v. 1, n. 1, p. 22–29, 2017. DOI: 10.25077/aoj.1.1.22-29.2017. Disponível em: https://jurnalobgin.fk.unand.ac.id/index.php/JOE/article/view/112. Acesso em: 5 nov. 2026.