[1] Brazilian Natl Canc Inst INCA, Clin Res Div, 37 Andre Cavalcanti St, BR-20231050 Rio De Janeiro, RJ, Brazil
[2] Fundacao Oswaldo Cruz, Natl Sch Publ Hlth Sergio Arouca, Dept Hlth Adm & Planning, 1480 Leopoldo Bulhoes St, BR-21041210 Rio De Janeiro, RJ, Brazil
[3] Fundacao Oswaldo Cruz, Natl Sch Publ Hlth Sergio Arouca, Dept Med Policy & Pharmaceut Serv, 1480 Leopoldo Bulhoes St, BR-21041210 Rio De Janeiro, RJ, Brazil