Thorat, M B, NK Jain, A S Bhosale, and B R Pawar. “Lung Cancer Cytology: Potential Pitfalls- a Review”. Journal of Drug Delivery and Therapeutics 8, no. 6-A (January 10, 2019): 129-134. Accessed June 25, 2019. http://jddtonline.info/index.php/jddt/article/view/2301.