Kontopoulou K, Nakas CT, Belai C, Papazisis G, et al. Antibody Titers After a Third Dose of the SARS-CoV-2 BNT162b2 Vaccine in
immunocompromised adults in Greece: is a fourth dose necessary? J Med Virol 2022 Jun 23. doi: 10.1002/jmv.27954.
PMID: 35739059