chronic catheters were implanted 8 weeks postpartum and 7 experiments were performed on these nonlactating vitamin b-12-depleted sheep ( de-b12 : 340 +/- 30 ng vitamin b-12 per gram wet liver ) prior to repletion by intramuscular injection of hydroxocobalamin .
C0042845
vitamin b-12
C0020316
hydroxocobalamin