Impact of vaccination and birth rate on the epidemiology of pertussis: a comparative study in 64 countries.

Broutin, H., C. Viboud, B. T. Grenfell, M. A. Miller, and P. Rohani. 2010. Impact of vaccination and birth rate on the epidemiology of pertussis: a comparative study in 64 countries. P Roy Soc B-biol Sci 277:3239- 3245.