Selection of patients for myocardial perfusion scintigraphy based on fuzzy sets theory applied to clinical-epidemiological data and treadmill test results - Duarte, Paulo Sérgio; Mastrocolla, Luiz Eduardo; Farsky, Pedro Silvio; Sampaio, C. R. E. P. S.; Tonelli, Pedro Aladar; Barros, L. C.; Ortega, Neli Regina Siqueira; Pereira, Júlio César Rodrigues (Brazilian Journal of Medical and Biological Research, 2006)