Prasad Rajendra, Gupta Nikhil, Banka Amitabh
Department of Pulmonary Medicine, ERA's Lucknow Medical College & Hospital, Lucknow 226 024, Uttar Pradesh, India.
Department of General Medicine, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow 226 024, Uttar Pradesh, India.
Indian J Med Res. 2017 Sep;146(3):301-303. doi: 10.4103/ijmr.IJMR_1704_16.