BNT162b2 or CoronaVac as the Third Dose against Omicron: Neutralizing Antibody Responses among Transplant Recipients Who Had Received Two Doses of CoronaVac oleh Çiğdem Erol, Zeynep Ece Kuloğlu, Bircan Kayaaslan, Gülen Esken, Adalet Altunsoy, Tayfun Barlas, Güle Çınar, İmran Hasanoğlu, Ebru Oruç, Said İncir, Alpay Azap, Gülten Korkmaz, Dilara Turan Gökçe, Onur Elvan Kırımker, Ezgi Coşkun Yenigün, Erkan Ölçücüoğlu, Ebru Ayvazoğlu Soy, Süleyman Çetinkünar, Özlem Kurt Azap, Füsun Can, Mehmet Haberal