Alexopoulos, G. S., Abrams, R. C., Young, R. C., Shamoian, C. A. 1988. Cornell Scale for Depression in Dementia. Biol Psychiatry. 23 (3) 271-84.
Morris, J. N., Sherwood, S., Gutkin, C. E. 1988. Inst-Risk II: an approach to forecasting relative risk of future institutional placement. Health services research. 23 (4) 511-536.