title: Knock, knock...
authors.affiliation: McKellips is Executive Vice President of the Foundation for Biomedical Research in Washington, DC.
authors.forename: Paul
authors.initials: P
authors.lastname: McKellips
mesh_terms: D032761:Animal Experimentation; D000818:Animals; D000830:Animals, Laboratory; D003142:Communication; D006801:Humans; D007756:Laboratory Animal Science