IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-12-5-49239 Original Research Paper The DECAF Score: Predicting Hospital Mortality In Exacerbations Of Chronic Obstructive Pulmonary Disease Meghana T S Dr. Dr Meghana B S Dr. Dr Nithin Gowda AV Dr. May 2023 12 5 01 02