The COVID-19 outbreak may be associated to a reduced level of care for breast cancer. A comparative study with the pre-COVID era in an Italian Breast Unit. (October 2020) - Fancellu, A.; Sanna, V.; Piredda, C.; Ariu, L.; Piana, G.Q.; Deiana, G.; Cottu, P.; Giuliani, G.; Porcu, A.