Series1- Correspondence
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Series2- Autopsies
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Series3- Pathology Textbook Material
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Series4- Articles, Papers, and Speeches
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Series5- Research and Teaching Notes
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Series6- Halsted Biography
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Series7- Personal Items, Travel Notes, Honors, Certificates and Diaries
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Series8- Articles Collected by MacCallum
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Series9- Scrapbook regarding William Welch
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