Vivien Thomas, cardiac surgery pioneer, 1940s. http://pic.twitter.com/5Sp1EdpurV
— History In Pictures (@HistoryInPics) May 23, 2016
from Twitter https://twitter.com/HistoryInPics
May 23, 2016 at 03:29AM
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Vivien Thomas, cardiac surgery pioneer, 1940s. http://pic.twitter.com/5Sp1EdpurV
— History In Pictures (@HistoryInPics) May 23, 2016
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