Participation rates and representativeness of African Americans recruited to a health promotion program

C. H Halbert, S Kumanyika, M Bowman, S. L Bellamy, V Briggs, S Brown, B Bryant, E Delmoor, J. C Johnson, J Purnell, R Rogers and B. Weathers

Health Education Research 25 ( 1 ): 6 - 13 , 2010