DOI:
10.1055/s-00000012
Endoscopy
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References
Chemaitelly H, Tang P, Hasan MR. et al.
Waning of BNT162b2 vaccine protection against SARS-CoV-2 infection in Qatar.
N Engl J Med 2021;
DOI: 10.1056/NEJMoa2114114.
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