High blood lead levels in Brazilian preschool children: investigation of exposure sources - Silva, Júlia Prestes da Rocha; Salles, Fernanda Junqueira; Leroux, Isabelle Nogueira; Ferreira, Ana Paula Sacone da Silva; Silva, Agnes Soares da; Assunção, Nilson Antônio; Sato, Ana Paula Sayuri; Nardocci, Adelaide Cassia; Barbosa Jr, Fernando; Cardoso, Maria Regina Alves; Olympio, Kelly Polido Kaneshiro (Annual Conference of the International Society of Environmental Epidemiology, 2017)