1. U.S. Department of Health and Human Services, Healthy people 2010, U.S. Government printing office, Washington, DC, 2000. Originally developed for S.C. Ratzan, R.M. Parker, 2000, introduction, In National Library of Medicine Current Bibliographies in Medicine: Health Literacy. C.R. Selden, M. Zorn, S.C. Ratzan, R.M. Parker (Eds.), NLM Pub. No. CBM 2000-1. Bethesda, MD: National Institutes of Health, U.S. Department of Health and Human Services.
2. American Medical Association, AMA Foundation, Health Literacy and Patient Safety: Help Patients Understand;Weiss,2007
3. Clear & Simple: what Is Clear & Simple?;NIH,2016
4. Babel babble: physicians' use of unclarified medical jargon with patients;Castro;Am. J. Health Behav.,2007
5. Relationship of functional health literacy to patients' knowledge of their chronic disease. A study of patients with hypertension and diabetes;Williams;Arch. Intern. Med.,1998