A reversed action of the vagus on the mammalian heart / by H.H. Dale, P.P. Laidlaw, and C.T. Symons.

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Credit

A reversed action of the vagus on the mammalian heart / by H.H. Dale, P.P. Laidlaw, and C.T. Symons. Attribution 4.0 International (CC BY 4.0). Source: Wellcome Collection.

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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.