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History, 20th Century
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2
Billings, John S. (John Shaw), 1838-1913.
1
Cardiologists
1
DeBakey, Michael E. (Michael Ellis), 1908-2008.
1
Heart Diseases -- history
1
Heart Diseases -- surgery
1
History of Medicine
1
History, 19th Century
1
Military Medicine -- history
1
Science -- history
1
United States
1