Warttig SL, Forshaw MJ, South J, White AK. New, normative, English-sample data for the Short Form Perceived Stress Scale (PSS-4). J Health Psychol. 2013 Dec;18(12):1617-28. doi: 10.1177/1359105313508346
Lee E, Candrilli SD, Roberts CS, Tang SSK, Bassin S, Wong ND. Regional Differences in the Prevalence, Treatment and Control of Hypertension and Dyslipidemia in Us Urban Hispanic Populations Participating in Health Screening Events. Ethn Dis. 2008 Sep 1;18(4):409-14.
Quandt SA, Graham CN, Bell RA, Snively BM, Golden SL, Stafford JM, Arcury TA. Ethnic disparities in health-related quality of life among older rural adults with diabetes. Ethn Dis. 2007;17(3):471-6.