ASSESSMENT OF VITAMIN B12 AND HOMOCYSTEINE LEVELS IN PREGNANT WOMEN ADMITTED FOR DELIVERY AND CORD BLOOD SAMPLES OF THEIR NEWBORN BABIES: A MULTICENTER STUDY oleh Zeynep Yildiz Yildirmak, Dildar Bahar Genç, Alev Kural, Veli Mihmanli, Suleyman Salman, Keziban Doğan, Mehmet Ali Çiftçi, Nazli Doktur Efeoğlu, Aliye Erdoğan, Necirvan Cagdas Caltek, Emre Ozgen, Ebru Kale