Namrata, Amarendra Kumar Shukla, Tiwari, P., Veerendra Arya and Prahlad Prabhudesai 2023. Scope of medical rigid thoracoscopy in patients with pleural effusion of unknown etiology: A prospective single center study. Asian Journal of Medical Sciences. 14, 4 (Apr. 2023), 222–229. DOI:https://doi.org/10.3126/ajms.v14i4.48316.