Mohieldin Mahgoub Ibrahim, Mostafa, Maria Eugenia Colucci, Licia Veronesi, Isabella Viani, Anna Odone, Mattia Pia Arena, Monia Incerti, et al. “Virological Surveillance of SARS-CoV-2 in an Italian Northern Area: Differences in Gender, Age and Real Time RT PCR Cycle Threshold (Ct) Values in Three Epidemic Periods”. Acta Biomedica Atenei Parmensis 92, no. S6 (October 7, 2021): e2021457. Accessed July 17, 2024. https://mattioli1885journals.com/index.php/actabiomedica/article/view/12268.