Prasad Rajendra, Gupta Nikhil, Banka Amitabh
Department of Pulmonary Medicine, Era's Lucknow Medical College and Hospital, Lucknow, Uttar Pradesh, India.
Department of Internal Medicine, Era's Lucknow Medical College and Hospital, Lucknow, Uttar Pradesh, India.
Lung India. 2017 Sep-Oct;34(5):409-410. doi: 10.4103/lungindia.lungindia_186_17.