Tyagi, R., Kant, S., Verma, S. K., Kushwaha, R. A. S., Kumar, S., Garg, R., Verma, A. K., Srivastava, A., Bajaj, D. K., Wakhlu, A., Parihar, A., Pradhan, A. and Jaiswal, R. (2021) “Spectrum of interstitial lung diseases and their association with pulmonary hypertension”, Monaldi Archives for Chest Disease, 92(3). doi: 10.4081/monaldi.2021.2027.