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Credit
Contributions à l'histoire de la constitution de l'oeuf. I. Rapport médiat de la vésicule germinative avec la périphérie du vitellus / par Ch. van Bambeke. 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.