Cost-effectiveness of sick leave policies for health care workers with influenza-like illness, Brazil, 2009 - Mota, Nancy Val y Val P.; Lobo, Renata Desordi; Toscano, Cristiana M.; Lima, Antonio Carlos Pedroso de; Dias, M. Beatriz Souza; Komagata, Helio; Levin, Anna S. (Emerging Infectious Diseases, 2011)