Implementation of an organized colorectal cancer screening program through quantitative fecal immunochemical test followed by colonoscopy in an urban low-income community: Guidance and strategies Ulysses Ribeiro; Adriana Vaz Safatle-Ribeiro; Maurício Sorbello; Poliana Helena Rosolem Kishi; Diane Dede Cohend; Rejane Mattar; Vera Lucia Pagliusi Castilho; Elenice Messias Do Nascimento Goncalves; Fábio Kawaguti; Carlos Frederico Sparapan Marques; Venâncio Avancini Ferreira Alves; Sérgio Carlos Nahas; José Eluf-Neto;