PTSD in parents of children with severe diseases: a systematic review to face Covid-19 impact. - Corsi, Martina; Orsini, Alessandro; Pedrinelli, Virginia; Santangelo, Andrea; Bertelloni, Carlo Antonio; Carli, Niccolò; Buselli, Rodolfo; Peroni, Diego; Striano, Pasquale; Dell'Osso, Liliana; Carmassi, Claudia (Italian Journal of Pediatrics, 2021)