Scott Duncan, Elizabeth K Duncan, Romulo A Fernandes, Camila Buonani, Karolynne D-N Bastos, Aline FM Segatto, Jamile S Codogno, Igor C Gomes, Ismael F Freitas, Jr
BMC Public Health. 2011; 11: 585. Published online 2011 July 22. doi: 10.1186/1471-2458-11-585