1. Experimental observations on Haffner's method for testing analgesic drugs;Bianchi;Brit. J. Pharmacol.,1959
2. Narcotic antagonist activity of naloxone;Blumberg,1961
3. Pharmacokinetics of morphine in relation to analgesia: effects of routes of administration;Dahlstroem,1978
4. The effect of various neurohumoral modulators on the activity of morphine and the narcotic antagonists in the tail flick and phenylquinone tests;Dewey;J. Pharmacol. exp. Ther.,1970
5. Probit Analysis;Finney,1952