Khyati Awasthi, Dr Chhavi Kalra, Dr Poonam Rani, Dr. Shivani Bhardwaj, and Prof. (Dr) R.K Sharma, “Anxiety, Depression And Quality Of Life In Relation To Physical Activity Among Copd Population - A Correlation Study”, REDVET, vol. 25, no. 1, pp. 3063-3068, Jan. 2024.