1 Institute of Collective Health, Federal University of Bahia, Salvador, Brazil; Public Health Department, Higher University of San Andres, La Paz, Bolivia.
2 Institute of Collective Health, Federal University of Bahia, Salvador, Brazil; Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Salvador, Brazil; Public Health Department, Higher University of San Andres, La Paz, Bolivia. Electronic address: [email protected].
3 University of Maryland School of Medicine, Baltimore, MD, USA.