Cancer has become a leading cause of death and disability and a serious yet unforeseen challenge to health systems in low- and middle-income countries. A protracted and polarized cancer transition is under way and fuels a concentration of preventable risk, illness, suffering, impoverishment from ill health, and death among poor populations. Closing this cancer divide is an equity imperative. The world faces a huge, unperceived cost of failure to take action that requires an immediate and large-scale global response.

"Closing the Cancer Divide" presents strategies for innovation in...