title: Liens for veterinary service--how effective are they?
authors.affiliation: University of Illinois, Urbana, USA.
authors.forename: H W
authors.initials: HW
authors.lastname: Hannah
mesh_terms: D000818:Animals; D000829:Animals, Domestic; D002417:Cattle; D006736:Horses; D006801:Humans; D007886:Legislation, Veterinary / Q000191:economics*; D011641:Public Relations; D018634:Veterinarians / Q000191:economics / Q000331:legislation & jurisprudence*; D014730:Veterinary Medicine / Q000191:economics*