6. Open-heart surgery, NIH, 1955. Photo by R. Perry Subject(s): Thoracic SurgerySurgeonsNational Institutes of Health (U.S.)
7. Open-heart surgery, NIH, 1955. Photo by R. Perry Subject(s): Thoracic SurgerySurgeonsNational Institutes of Health (U.S.)
8. Open-heart surgery, NIH, 1955. Photo by R. Perry Subject(s): Thoracic SurgerySurgeonsNational Institutes of Health (U.S.)
9. Open-heart surgery, NIH, 1955. Photo by R. Perry Subject(s): Thoracic SurgerySurgeonsNational Institutes of Health (U.S.)
10. Open-heart surgery, NIH, 1955. Photo by R. Perry Subject(s): Thoracic SurgerySurgeonsNational Institutes of Health (U.S.)