Vagotonia; a clinical study in vegetative neurology / by Hans Eppinger and Leo Hess. Authorized translation by Walter Max Kraus and Smith Ely Jelliffe.

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Vagotonia; a clinical study in vegetative neurology / by Hans Eppinger and Leo Hess. Authorized translation by Walter Max Kraus and Smith Ely Jelliffe. Public Domain Mark. Source: Wellcome Collection.