1. Kagawa-Singer, M. (2000). Improving the validity and generalizability of studies with underserved U.S. populations expanding the research paradigm. Annals of Epidemiology, 10, S92–S103.
2. Shumaker, S. A., & Naughton, M. J. (1995). The international assessment of health-related quality of life: A theoretical perspective. In S. A. Shumaker & R. A. Berzon (Eds.), The international assessment of health-related quality of life: Theory, translation, measurement and analysis (pp. 3–10). Oxford: Rapid Communication.
3. Stewart, A. L., & Napoles-Springer, A. (2000). Health-related quality of life assessments in diverse population groups in the United States. Medical Care, 38(9 Suppl II), II-102–II-124.
4. Herdman, M., Fox-Rushby, J., & Badia, X. (1998). A model of equivalence in the cultural adaptation of HRQOL instruments: The universalist approach. Quality of Life Research, 7, 323–335.
5. Cella, D. F. (1997). Manual of the Functional Assessment of Chronic Illness Therapy (FACIT) measurement. Evanston: Center on Outcomes, Research and Education (CORE).