Pests in hospitals.
D000818:Animals; D001000:Ants; D001181:Arthropods; D001717:Birds; D002415:Cats; D003058:Cockroaches; D004739:England; D006761:Hospitals; D006801:Humans; D007300:Insect Control; D051379:Mice; D010571:Pest Control / Q000191:economics; D051381:Rats; D012375:Rodent Control