RT Journal Article SR Electronic T1 ON THE PHARMACOLOGY OF THE URETER IV. ACTION OF HYDRASTIN, HYDRASTININ, COTARNIN, EMETIN AND SOME PYRIDIN DERIVATIVES, WITH A FURTHER ANALYSIS OF THE OPIUM ACTION JF Journal of Pharmacology and Experimental Therapeutics JO J Pharmacol Exp Ther FD American Society for Pharmacology and Experimental Therapeutics SP 287 OP 303 VO 9 IS 6 A1 DAVID I. MACHT YR 1917 UL http://jpet.aspetjournals.org/content/9/6/287.abstract AB