Harrison's Principles of Internal Medicine

American internal medicine textbook

Harrison's Principles of Internal Medicine is an American textbook of internal medicine. First published in 1950, it is in its 21st edition and comes in two volumes. Although it is aimed at all members of the medical profession, it is mainly used by internists and junior doctors in this field, as well as medical students. It is widely regarded as one of the most authoritative books on internal medicine and has been described as the "most recognized book in all of medicine."

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