Some observations on the vitamin B12 content of rat's milk.
D000818:Animals; D001681:Biological Assay; D002118:Calcium / Q000032:analysis; D004032:Diet; D005260:Female; D007778:Lactobacillus / Q000378:metabolism; D008892:Milk / Q000032:analysis*; D051381:Rats / Q000378:metabolism*; D012964:Sodium / Q000032:analysis; D014805:Vitamin B 12 / Q000032:analysis*
D012964:Sodium; D014805:Vitamin B 12; D002118:Calcium