Peck, M. S., Porter, A. T., Hayes, B. D., Otieno, D., Hargrove, A. J., Mayhand, C. C., Johnson, A. I. and Brown, L. M. (2017) “Sex and longevity: Why women live longer than men.”, Journal of Student Research. Houston, U.S, 6(1), pp. 19-23. doi: 10.47611/jsr.v6i1.286.