The right to use nonstandard materials or methods.
D000818:Animals; D002140:California; D004363:Drug Utilization / Q000331:legislation & jurisprudence; D006801:Humans; D007258:Informed Consent / Q000331:legislation & jurisprudence; D007886:Legislation, Veterinary; D008318:Malpractice / Q000331:legislation & jurisprudence*; D014481:United States; D014486:United States Food and Drug Administration; D014730:Veterinary Medicine / Q000592:standards*