Live birth of twins derived from zona-free oocytes
PENGARUH EKSTRAK KULIT BUAH JERUK PONTIANAK (Citrus Nobilis L Var Microcarpa) DALAM PEMBENTUKAN ZONA HAMBAT TERHADAP PERTUMBUHAN BAKTERI Streptococcus mutans
Ovoperoxidase activity in ionophore treated mouse eggs. II. Evidence for the enzyme's role in hardening the zona pellucida