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2. An Enquiry Concerning the Rôle of Allergy, Immunity and Other Factors of Importance in the Pathogenesis of Human Tuberculosis;Rich A. R.;The Bulletin of the Johns Hopkins Hospital,1929
3. RobertMuir: “A Text Book of Pathology” Third Edition 1933 page735.
4. INCIDENCE OF HUMAN AND BOVINE BACILLI IN TUBERCULOUS MENINGITIS