TY  - GEN
AU  - Frei,C
AU  - Frei,P P
AU  - Stärk,K D
AU  - Pfeiffer,D U
AU  - Kihm,U
TI  - The production system and disease incidence in a national random longitudinal study of Swiss dairy herds
SN  - 0167-5877
PY  - 1997///1212
KW  - Animal Husbandry
KW  - Animals
KW  - Cattle
KW  - Cattle Diseases
KW  - epidemiology
KW  - Epidemiologic Methods
KW  - veterinary
KW  - Female
KW  - Incidence
KW  - Longitudinal Studies
KW  - Pregnancy
KW  - Switzerland
N1  - Publication Type: Journal Article; Research Support, Non-U.S. Gov't
UR  - https://doi.org/10.1016/s0167-5877(97)00020-2
ER  -