1. Opioid analgesics and antagonists;Jaffe, J.H.; Martin, W.R.,1990
2. Skin diseases;Parker, F.,1992
3. Dollery C. Morphine. In: Dollery C, ed. Therapeutic drugs. Vol 2. New York: Churchill Livingstone, 1991: M225-33.
4. Experimental study of itch stimuli in animals;Koenigstein, H.;Arch Dermatol Syph,1948
5. The medullary dorsal horn: a target for the expression of opiate effects on the perceived intensity of noxious heat;true;J Neurosci,1986