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What is Reid's Index is? - and explain in detail?
There is histologic definition of chronic bronchitis by increased Reid index. Reid index is the ratio between thickness of the submucosal mucus glands (i.e. hyperophy and hyperplasia) in the cailage-containing large airways to that of the total bronchial wall. TEXTBOOK OF PATHOLOGY 6TH EDITION HARSH MOHAN PAGE NO:478