http://ocw.jhsph.edu/courses/publichealthtoxicology/PDFs/Lecture11_Trush.pdf
https://creativecommons.org/licenses/by-nc-sa/2.5/
See a detailed analysis of the effects of benzene on a cellular level (slide 29). Exposure can cause a number of bone marrow diseases. Johns Hopkins Bloomberg School of Public Health, Michael Trush, 2008.