Ahmad, A., Muneer, .B. and Shakoor, A.R. 2012. Effect of Chromium, Cadmium and Arsenic on Growth and Morphology of HeLa Cells. Journal of Basic & Applied Sciences. 8, 1 (Feb. 2012), 53–58. DOI:https://doi.org/10.6000/1927‐5129.2012.08.01.17.