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Hirdes J.P, Botz C.A, Kozak J., Lepp V..  1996.  Identifying an appropriate case mix measure for chronic care: evidence from an Ontario pilot study. Healthcare Management Forum. 9(1):40-6.

Fries B.E, Mehr D.R, Schneider D., Foley W.J, Burke R..  1993.  Mental dysfunction and resource use in nursing homes. Medical Care. 31(10):898-920.

Williams B.C, Fries B.E, Foley W.J, Schneider D., Gavazzi M..  1994.  Activities of daily living and costs in nursing homes. Health Care Financing Review. 15(4):117-35.

Fries B.E, Ljunggren G., Winblad B..  1991.  International comparison of long-term care: the need for resident-level classification. Journal of the American Geriatrics Society. 39(1):10-6.

Hirdes J.P.  1997.  Development of a crosswalk from the Minimum Data Set 2.0 to the Alberta Resident Classification System. Healthcare Management Forum. 10(1):27-9,32-4.