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Credit
Émétine et atropine : action isolée et comparée de ces deux substances sur la fréquence des battements cardiaques chez la grenouille : étude expérimentale / par J. Grasset, A. Amblard. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.