Khaleghi, M., A. Farsinejad, S. Dabiri, and G. Asadikaram. “Induction of Apoptosis by Opium in Some Tumor Cell Lines”. Cellular and Molecular Biology, vol. 62, no. 11, Sept. 2016, pp. 76-80, doi:10.14715/cmb/2016.62.11.13.