1. Some effects of morphine and other opium alkaloids on intestinal motility of different animals;Dreyer;Arch. intern. pharmacodyn.,1933
2. Two kinds of tryptamine receptors;Gaddum;Brit. J. Pharmacol.,1957
3. A comparison of the action of dilaudid hydrochloride and morphine sulphate upon segments of excised intestine and uterus;Gruber;J. Pharmacol.,1935
4. A demonstration of morphine tolerance and physical dependence in the cat;Hanna;Arch. intern. pharmacodyn.,1960
5. The inhibitory action of morphine on the contraction of the longitudinal muscle coat of the isolated guineapig ileum;Kosterlitz;Brit. J. Pharmacol.,1958