1 Princess Margaret Cancer Centre, University of Toronto, Toronto, ON M5G 2M9, Canada. Electronic address: mary.gospodarowicz@rmp.uhn.ca.
2 MD Anderson Cancer Center, Houston, TX, USA.
3 Institute for Advanced Study of the Americas, and Sylvester Comprehensive Cancer Center, University of Miami, Coral Gables, FL, USA; Tómatelo a Pecho, Mexico City, Mexico; Mexican Health Foundation, Mexico City, Mexico.