More Groups
Fewer Groups
Du, M. American Journal of Public Health (2017)
Begg, C. B. American Journal of Public Health (2001)
Andrews, H. F.; Kerner, J. F.; Zauber, A. G.; Mandelblatt, J.; Pittman, J.; Struening, E. American Journal of Public Health (1994)
Dusenbury, L.; Kerner, J. F.; Baker, E.; Botvin, G.; James-Ortiz, S.; Zauber, A. American Journal of Public Health (1992)
Mandelblatt, J.; Andrews, H.; Kerner, J.; Zauber, A.; Burnett, W. American Journal of Public Health (1991)