title: Which protocol deviations require preapproval?
authors.forename: Jerald
authors.initials: J
authors.lastname: Silverman
mesh_terms: D035661:Animal Care Committees; D032761:Animal Experimentation / Q000331:legislation & jurisprudence / Q000592:standards*; D000827:Animal Welfare; D000818:Animals; D019983:Guideline Adherence; D051381:Rats; D012107:Research Design / Q000331:legislation & jurisprudence / Q000592:standards*