ALLARD, H. J., Dr. Vopiscus Fortunatis Plemp [1601-1671]

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Vopiscus (a name usually given to the surviving half of a twin) was born in Amsterdam, where he had a medical practice. In 1633 he was appointed professor of medicine at Louvain. He concentrated on the circulation of the blood and the movement of the heart.He became friends with Descartes.