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"Positive affect improves creative problem solving and influences reported source of practice satisfaction in physicians." Carlos A. Estrada , Alice M. Isen and Mark J. Young http://www.springerlink.com/content/yr34457401wl02t2/ Accessed Dec. 31, 2011.
The New Science of Gratitude http://gratitudepower.net/science.htm
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23 Tips to Reduce Stress, Work Happier for Top Performance http://www.bizcoachinfo.com/archives/8446 Accessed Dec. 31, 2011.
A neuropsychological theory of positive affect and its influence on cognition. Ashby, F. Gregory; Isen, Alice M.;Turken, And U.
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Ten Tips for Happiness http://www.happylifeu.com/Tips_for_Happiness.html Accessed Dec. 31, 2011.
The Health Benefits of Happiness http://preventdisease.com/home/weeklywellness274.shtml Accessed Dec. 31, 2011.
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