Pioneers of Group Practice in Medicine US postage stamp on Mayo brothers.
Anand
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India Habitat Centre, New Delhi.
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Anand
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D006666:History of Medicine; D049672:History, 19th Century; D049673:History, 20th Century; D006770:Hospitals, Group Practice / Q000266:history*; D006801:Humans; D008910:Minnesota; D010678:Philately; D013038:Specialization