On tuberculosis and COVID-19 co-infection - Tadolini, Marina; García-García, José-María; Blanc, François-Xavier; Borisov, Sergey; Goletti, Delia; Motta, Ilaria; Codecasa, Luigi Ruffo; Tiberi, Simon; Sotgiu, Giovanni; Migliori, Giovanni Battista (The European respiratory journal, 2020)