1. Gulnar Azevedo e Silva is with the Instituto de Medicina Social, Universidade do Estado do Rio de Janeiro (UERJ), Brazil and the Brazilian Association of Collective Health (ABRASCO), Rio de Janeiro, Brazil. Ligia Giovanella is with the Escola Nacional de Saúde Pública Sérgio Arouca—Fundação Oswaldo Cruz, Brazil and the Primary Health Care Network—ABRASCO. Kenneth Rochel de Camargo Jr is with the Instituto de Medicina Social, UERJ and is an AJPH associate editor.