Free radicals, lipid peroxidation and the antioxidant system in the blood of cows and newborn calves around calving. - Gaal,T.; Ribiczeyne-Szabo,P.; Stadler,K.; Jakus,J.; Reiczigel,J.; Kover,P.; Mezes,M.; Sumeghy,L. (Comparative Biochem Physiol part B, 2006)