DOI:
10.1055/s-00000012
Endoscopy
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References
Shrotri M, Navaratnam AMD, Nguyen V. et al.
Spike-antibody waning after second dose of BNT162b2 or ChAdOx1.
Lancet 2021;
398: 385-387
DOI: 10.1016/S0140-6736(21)01642-1.
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