[Effect of cobalt on the resistance of bees to foulbrood].
D000818:Animals; D001424:Bacterial Infections / Q000517:prevention & control / Q000662:veterinary*; D001516:Bees / Q000187:drug effects*; D003035:Cobalt / Q000494:pharmacology*
D003035:Cobalt
Vliianie kobal'ta na rezistentnost' pchel k gnil'tsam.