Factors associated with prolonged non-nutritive sucking habits in two cohorts of brazilian children - Maia-Nader, Marcela; Figueiredo, Camilla Silva de Araújo; Figueiredo, Felipe Pinheiro de; Silva, Antonio Augusto Moura da; Thomaz, Erika Bárbara Abreu Fonseca; Saraiva, Maria da Conceicao Pereira; Barbieri, Marco Antonio; Bettiol, Heloisa (BMC Public Health, 2014)