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Dr Raja Dhar (MBBS, MD (Respiratory Medicine), FRCP (London, UK), M.Sc. (Evidence Based Medicine, UK)CCT (Respiratory & General Medicine, UK), FCCP (USA)) is the Director & HOD, Department of Pulmonology at The Calcutta Medical Research Institute, Kolkata having more than 27 years of experience in Pulmonology, Critical Medical Management and Interventional Pulmonology. He specialises in all disciplines of Respiratory Medicine including airways disease, pulmonary fibrosis, pulmonary hypertension, transplant, lung cancer, sleep medicine, lung infections including TB, and respiratory emergencies.