[Causes of calf mortality in a north-west German district].
D000822:Animal Husbandry; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000401:mortality*; D003141:Communicable Diseases / Q000382:microbiology / Q000662:veterinary*; D005860:Germany, West
Untersuchungen über Ursachen der Kälbersterblichkeit in einem Kreisgebiet Nordwestdeutschlands.