Heckman, T. G., Kochman, A., Sikkema, K. J., Kalichman, S. C., Masten, J., & Goodkin, K. (2000). Late middle-aged and older men living with HIV/AIDS: Race differences in coping, social support, and psychological distress. National Medical Association.

Heckman, T. G., A. Kochman, K. J. Sikkema, S. C. Kalichman, J. Masten, e K. Goodkin. Late Middle-aged and Older Men Living With HIV/AIDS: Race Differences in Coping, Social Support, and Psychological Distress. National Medical Association, 2000.

Heckman, T. G., et al. Late Middle-aged and Older Men Living With HIV/AIDS: Race Differences in Coping, Social Support, and Psychological Distress. National Medical Association, 2000.