The purpose of this funding opportunity announcement (FOA) is to support research on interventions to improve health in Native American (NA) populations. This includes 1) etiologic research, where there is a significant gap in knowledge, that will directly inform intervention development or adaptations, 2) research that develops, adapts, or tests the efficacy or effectiveness of health promotion and disease prevention interventions, 3) research that tests culturally informed treatment or recovery interventions and...