Carvalho, Ana Louise de Araújo, Danielle Luce Almeida Oliveira, Waldeise Pereira, and Francisca Georgina Macedo de Sousa. 2004. “Hospitalization As a Chance to Update the Basic Vaccination Calendar: An Experience Carried Out at the University Hospital in São Luís – MA”. Rev Rene 5 (1). http://periodicos.ufc.br/rene/article/view/5589.