Induction of skin tanning by subcutaneous administration of a potent synthetic melanotropin. - Levine, N; Sheftel, S N; Eytan, T; Dorr, R T; Hadley, M E; Weinrach, J C; Ertl, G A; Toth, K; McGee, D L; Hruby, V J (JAMA: Journal of the American Medical Association, 1991)