Authors: M E Olson; N J Guselle; R M O'Handley; M L Swift; T A McAllister; M D Jelinski; D W Morck Journal: Can Vet J Date: 1997-11 Impact factor: 1.008
Authors: G P Kent; J R Greenspan; J L Herndon; L M Mofenson; J A Harris; T R Eng; H A Waskin Journal: Am J Public Health Date: 1988-02 Impact factor: 9.308