title: [(How) do I choose a external management advisor. External support begins with a project plan and an offer].
authors.forename: Jan
authors.initials: J
authors.lastname: Hulsen
authors.forename: Hugo
authors.initials: H
authors.lastname: de Groot
mesh_terms: D000818:Animals; D003253:Consultants; D006801:Humans; D020399:Practice Management / Q000191:economics / Q000458:organization & administration; D014730:Veterinary Medicine / Q000191:economics / Q000458:organization & administration*