Different dynamics of mean SARS-CoV-2 RT-PCR Ct values between the first and second COVID-19 waves in the Madrid population

1. Rodríguez-Grande, C.
2. Catalán, P.
3. Alcalá, L.
4. Buenestado-Serrano, S.
5. Adán-Jiménez, J.
6. Rodríguez-Maus, S.
7. Herranz, M.
8. Sicilia, J.
9. Acosta, F.
10. Pérez-Lago, L.
11. Muñoz, P.
12. García de Viedma, D.