[Influenza-vaccinated and non-vaccinated elderly: reported morbidity and sociodemographic aspects, Porto Alegre (RS, Brazil), 2004].
Vilarino
Maria Aparecida Müller
MA
Secretaria Municipal de Saúde de Porto Alegre, Porto Alegre, RS. mavilarino@ sms.prefpoa.com.br
Lopes
Marta Júlia Marques
MJ
Bueno
André Luís Machado
AL
Brito
Maria Regina Varnieri
MR