Percentage of Hispanics within the world [42], United States [43], and Puerto Rico [44] populations and their corresponding leading cancer sites in incidence and mortality rates, for men and women [2, 45, 46] in decreasing order. World population 2009 [42]: it is still an underestimation of the actual Hispanic population for not considering those living in non-Hispanic countries, including United States. World Hispanic cancer sites 1998–2002 [45]: based on good quality data provided by United States and Hispanic countries, registries, and populations.