1. Laboratory of Medical Statistics and Epidemiology, ‘Giulio A. Maccacaro’, Department of Clinical Sciences and Community Health, University of Milan
2. Department of Research, Fondazione IRCCS Istituto Nazionale dei Tumori
3. Unit of Medical Statistics, Biometry and Bioinformatics, Campus Cascina Rosa, Fondazione IRCCS Istituto Nazionale Tumori
4. Senology Center, Casa di Cura Ambrosiana, Fondazione Sacra Famiglia, Cesano Boscone, Milan, Italy