Selection of patients for myocardial perfusion scintigraphy based on fuzzy sets theory applied to clinical-epidemiological data and treadmill test results oleh P.S. Duarte, L.E. Mastrocolla, P.S. Farsky, C.R.E.P.S. Sampaio, P.A. Tonelli, L.C. Barros, N.R. Ortega, J.C.R. Pereira