Evaluation of mammographic density patterns: reproducibility and concordance among scales oleh Garrido-Estepa Macarena, Ruiz-Perales Francisco, Miranda Josefa, Ascunce Nieves, González-Román Isabel, Sánchez-Contador Carmen, Santamariña Carmen, Moreo Pilar, Vidal Carmen, Peris Mercé, Moreno María P, Váquez-Carrete Jose A, Collado-García Francisca, Casanova Francisco, Ederra María, Salas Dolores, Pollán Marina