[Experimental experiences with test vaccines against infectious bronchitis of chickens].
D000818:Animals; D011201:Poultry Diseases / Q000276:immunology*; D014612:Vaccines; D014777:Virus Diseases / Q000662:veterinary*
D014612:Vaccines
Experimentelle Erfahrungen mit Versuchsvaccinen gegen Infektiöse Bronchitis der Hühner.