PJMD, A. “EXPRESSION OF TTF-1, NAPSIN-A, P63 AND P40 IN DIFFERENTIAL DIAGNOSIS OF NON-SMALL CELL LUNG CARCINOMA”. Pakistan Journal of Medicine and Dentistry, vol. 8, no. 3, July 2019, p. 7, http://ojs.zu.edu.pk/ojs/index.php/pjmd/article/view/250.