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Credit
Modern medical miscellany, or, Health for the millions : a collection of practical hints and instructive facts regarding our physical welfare and spiritual happiness : with a supplement on hygiene in matrimony, choice of sex, easy confinements, etc., on rational principles / by Wm. A. Jansen. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)