Public Domain Mark
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Credit
On the physiology of the embryonic heart : being a thesis for the degree of Doctor of Science of the Universty [i.e. University] of London, 1893 / by J.W. Pickering. 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.