- Blumenthal, J.A.; Hindle, P.; Needels, T.L.; Schocken, D.D.
- Psychological and Physiological Effects of Physical Conditioning on the Elderly.
- Journal of Psychosomatic Research, 1982, Vol. 26, 505 - 510
- English (Australia, Canada, UK, USA)
Eligible for inclusion in findings archive
- No, no valid measure of happiness used.