Effectiveness of Brazilian national health policy for mammogram screening in women aged over 50 years. Issue 1 (20th September 2020) - Amorim, Renata Bites Ferreira; Campos, Fabíola Soares Moreira; Silveira, Leonardo Larrubia; Archangelo Junior, Ivanildo; Novo, Neil Ferreira; Ferreira, Lydia Masako; Veiga, Daniela Francescato