Tuberculosis among health care workers in a Brazilian tertiary hospital emergency unit - Pazin-Filho, Antônio; Soares, Clésio Sousa; Ferrais, Aracele da Silva Nascimento; Castro, Paulo de Tarso Oliveira e; Bellíssimo-Rodrigues, Fernando; Nogueira, Jordana de Almeida; Passos, Afonso Dinis Costa (American Journal of Emergency Medicine, 2008)