B. B. Sharma, D. K. Mishra, T. Singh, N. Nargotra, R. K. Sharma, and P. Gupta, “Radiological Manifestation of Progressive Massive Fibrosis as a Complication of Silicosis-Case Report”, Nep J Radiology, vol. 10, no. 1, pp. 34–37, Dec. 2020.