title: [GGG-najaarsdag: 'Variation'].
authors.forename: Johan Klein
authors.initials: JK
authors.lastname: Haneveld
mesh_terms: D000820:Animal Diseases / Q000453:epidemiology* / Q000517:prevention & control*; D000818:Animals; D006801:Humans; D009426:Netherlands; D012952:Societies; D014730:Veterinary Medicine / Q000639:trends*; D014947:Wounds and Injuries / Q000453:epidemiology / Q000517:prevention & control / Q000662:veterinary