@article{articlece6b74f7,
title   = {Fuzzy gradual rules in epidemiology},
author = {Ortega, Neli Regina Siqueira and Barros, Laécio Carvalho de and Massad, Eduardo},
year = {2003},
doi = {10.1108/03684920310463876},
journal   = {Kybernetes}
}