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Vivien Thomas, who had no formal medical training, in struggling against overwhelming odds, he became a cardiac surgeon and eventually to receive an honorary doctorate from Johns Hopkins University.
  • who had no formal medical training, in struggling against overwhelming odds, he became
  • having had no formal medical training, in struggling against overwhelming odds to become
  • who, having no formal medical training, he struggled against overwhelming odds in becoming
  • who, having had no formal medical training and struggled against overwhelming odds, became
  • who had no formal medical training, struggled against overwhelming odds to become
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