1. The Vermont longitudinal study of persons with severe mental illness: I. Methodology, study sample, and overall status 32 years later.;American Journal of Psychiatry,1987
2. The Maine-Vermont three-decade studies of serious mental illness: I. Matched comparison of cross-sectional outcome.;British Journal of Psychiatry,1995
3. The Maine-Vermont three-decade studies of serious mental illness: II. Longitudinal course comparisons.;167,1995
4. 5. https://www.washingtonpost.com/national/health-science/there-really-are-50-eskimo-words-for-snow/2013/01/14/e0e3f4e0-59a0-11e2-beee-6e38f5215402_story.html