4-beta-aminoethylglyoxaline (beta-iminazolylethylamine) and the other active principles of ergot / by G. Barger and H.H. Dale.
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4-beta-aminoethylglyoxaline (beta-iminazolylethylamine) and the other active principles of ergot / by G. Barger and H.H. Dale. Credit: Wellcome Collection. Public Domain Mark