Background: There has been a great interest in tracking health-related fitness across the United States. The NFL PLAY 60 FITNESSGRAM Partnership Project (NFL P6
Racial residential segregation in the United States is generally associated differences in health outcomes among Blacks and Whites due to differential exposures
Cancer appears to pose a major threat to the health of the Sudanese population. It is the third leading cause of death in the Sudan after malaria and pneumonia,