Ahmad, Aftab, Bushra Muneer, and Abdul Rauf Shakoor. “Effect of Chromium, Cadmium and Arsenic on Growth and Morphology of HeLa Cells”. Journal of Basic & Applied Sciences 8, no. 1 (February 12, 2012): 53–58. Accessed July 7, 2024. http://set-publisher.com/index.php/jbas/article/view/2287.