[Monitoring animal welfare: voluntary is 100 times better than mandatory].
Swormink
Berrie Klein
BK
D000820:Animal Diseases / Q000453:epidemiology*; D000827:Animal Welfare; D000818:Animals; D006801:Humans; D009426:Netherlands; D011159:Population Surveillance; D018571:Sentinel Surveillance / Q000662:veterinary*; D015047:Zoonoses / Q000453:epidemiology