Comparing Computer-interpretable Guideline Models: A Case-study Approach - Peleg, M; Tu, S; Bury, J; Ciccarese, P; Fox, J; Greenes, RA; Hall, R; Johnson, PD; Jones, N; Kumar, A; Miksch, S; Quaglini, S; Seyfang, A; Shortliffe, EH; Stefanelli, M (J Am Med Inform Assoc, 2003)