Citation
Kubzansky, Laura D., David Sparrow, Pantel Vokonas, and Ichiro Kawachi. 2001. “Is the Glass Half Empty or Half Full? A Prospective Study of Optimism and Coronary Heart Disease in the Normative Aging Study.” Psychosomatic Medicine 63 (6): 910–16. https://doi.org/10.1097/00006842-200111000-00009.