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Professional
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Merck Manual
Professional Version
MEDICAL TOPICS
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ABOUT US
MEDICAL TOPICS
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Professional
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About the Merck Manuals
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Authors
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jerry l. spivak
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Jerry L. Spivak, MD; MACP
Specialities and Expertise
Hematology
Affiliations
Emeritus Professor of Medicine
, Johns Hopkins University School of Medicine
Certifications
Internal Medicine;Hematology