%0 Journal Article %A JOHN J. ABEL %A L. G. ROWNTREE %T ON THE PHARMACOLOGICAL ACTION OF SOME PHTHALEINS AND THEIR DERIVATIVES, WITH ESPECIAL REFERENCE TO THEIR BEHAVIOR AS PURGATIVES. I %D 1909 %J Journal of Pharmacology and Experimental Therapeutics %P 231-264 %V 1 %N 2 %U https://jpet.aspetjournals.org/content/jpet/1/2/231.full.pdf