Blood levels of fentanyl during multiple injections and intravenous infusions of low and high doses: approaching optimal conditions for "stress-free anaesthesia".
D000758:Anesthesia; D000818:Animals; D005283:Fentanyl / Q000008:administration & dosage / Q000097:blood*; D006801:Humans; D007263:Infusions, Parenteral; D007275:Injections, Intravenous; D011817:Rabbits; D013552:Swine
D005283:Fentanyl