Prospective Observational COVID-19 Screening and Monitoring of Asymptomatic Cancer Center Health-Care Workers with a Rapid Serological Test oleh Angelo Virgilio Paradiso, Simona De Summa, Nicola Silvestris, Stefania Tommasi, Antonio Tufaro, Angela Maria Vittoria Larocca, Vincenzo D’Addabbo, Donata Raffaele, Vito Cafagna, Vito Michele Garrisi, Giuseppe De Palma