For a paper that uses estimated evolutionary trees to examine the mechanism of HIV transmission among men who have sex with men, see: Butler, D. M., W. Delport, et al. 2010. The origins of sexually...

For a paper that uses estimated evolutionary trees to examine the mechanism of HIV transmission among men who have sex with men, see:

Butler, D. M., W. Delport, et al. 2010. The origins of sexually transmitted HIV among men who have sex with men. Science Translational

Medicine 2: 18re1.