Finne-Soveri U.H, Ljunggren G., Schroll M., Jonsson P.V, Hjaltadottir I., K. Kholy E, Tilvis R.S.  2000.  Pain and its association with disability in institutional long-term care in four Nordic countries. Canadian Journal on Aging. 19(SUPPL. 2):38-49.

Maxwell CJ, Hogan DB, Hirdes JP.  2000.  The prevalence and treatment of hypertension in long-term care settings: Implications for quality of care of the frail elderly. Annals of Long Term Care. 8(11):31-36.