Application of saliva samples in immunity surveillance: a ilot study in sao paulo, brazil - Azevedo Neto, Raymundo Soares de; Richards, A; Nokes, D J; Silveira, A S B; Cohen, B J; Passos, S D; Souza, Vanda Akico Ueda Fick de; Browm, D W G; Pannuti, Cláudio Sérgio; Massad, Eduardo (International Congress for Infectious Diseases, 1994)