- Moss, M.S.; Hoffman, R.; Mossey, J.M.
- Changes Over 4 Years in Health, Quality of Life, Mental Health, and Valuation of Life.
- Journal of Aging and Health, 2007, Vol. 19, 1025 - 1044
- English (Australia, Canada, UK, USA)
Eligible for inclusion in findings archive
- No, no valid measure of happiness used.