Dr. Shumail Bashir. MEDICAL THORACOSCOPY A VALUABLE TOOL IN THE DIAGNOSIS OF UNDIAGNOSED PLEURAL EFFUSION: A SINGLE CENTRE EXPERIENCE FROM NORTH INDIA. ijmsdr [Internet]. 2020 May 29 [cited 2026 May 20];4(4). Available from: https://ijmsdr.com/index.php/ijmsdr/article/view/567