The specification of levels of active intervention in a chronic care hospital Author:Publication type: Journal ArticleYear: 1993InterRAI Authors: Hirdes, J. P.Martin, N. J.Journal/Series title: Journal of Applied GerontologyVolume number: 12Issue: 2Pages: 125-138Keywords: *chronic patient*elderly careagehospital careHumanmedical decision makingmental healthmultivariate analysispsychologic assessmentreview