Citation: Michael YL, Perrin N, Bowen D, Cochrane BB, Wisdom JP, Brzyski R, Ritenbaugh C. Expression and ambivalence over expression of negative emotion: Psychometricanalysis in the Women’s Health Initiative. J Women Aging. 2005;17(1-2):5-18. doi: 10.1300/J074v17n01_02. Epub 2008 Sep 23.