Iared, W.; Shigueoka, D. C.; Torloni, M. R.; Velloni, F. G.; Ajzen, S. A.; Atallah, Álvaro N.; Valente, O. Comparative Evaluation of Digital Mammography and Film Mammography: Systematic Review and Meta-Analysis. Sao Paulo Med J 2011, 129, 250-260.