27. Total Serum Level of Calcium and Ion Calciumis Lower in Hypotonic Uterine Inertia Kadar KalsiumSerumtotaldanIonlebihrendahpada Penderita lnersia Uteri Hipotonik/ Josef Wattimury; Wiryawan Permadi; Edwin Armawan.-- Journal of Obstetrics and Gynecology, 1 (3) 2013: 145-148 Abstract Objectives: To know the correlation between total and ion serum calcium level with the uterine contractili…