Iron deficiency and the effectiveness of the BNT162b2 vaccine for SARS-CoV-2 infection: A retrospective, longitudinal analysis of real-world data. - Tene, Lilac; Karasik, Avraham; Chodick, Gabriel; Pereira, Dora I. A.; Schou, Henrik; Waechter, Sandra; Göhring, Udo-Michael; Drakesmith, Hal (PLoS ONE, 2023)