1 Stanford University School of Medicine, Stanford, CA, USA.
2 National Tuberculosis Control Program, Brasília, DF, Brazil.
3 Department of Epidemiology, School of Public Health, University of São Paulo, São Paulo, SP, Brazil.
4 Central Laboratory of Public Health, Campo Grande, MS, Brazil.
5 Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil, Oswaldo Cruz Foundation, Campo Grande, MS, Brazil, Yale School of Public Health, New Haven, CT, USA.
6 University of Utah, Division of Epidemiology, Salt Lake City, UT, USA.