Mammography-based screening program: preliminary results from a first 2-year round in a Brazilian region using mobile and fixed units - Haikel Jr., Raphael L.; Mauad, Edmundo C.; Silva, Thiago B.; Mattos, Jacó Saraiva de Castro; Chala, Luciano F.; Longatto-Filho, Adhemar; Barros, Nestor de (BMC Women¦s Health, 2012)