On the pharmacological action of some phthaleins and their derivatives : with especial reference to their behavior as purgatives. I / by John J. Abel and L.G. Rowntree.

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On the pharmacological action of some phthaleins and their derivatives : with especial reference to their behavior as purgatives. I / by John J. Abel and L.G. Rowntree. Public Domain Mark. Source: Wellcome Collection.