{Reference Type}: Journal Article {Title}: Antibody Response to a Fourth Messenger RNA COVID-19 Vaccine Dose in Kidney Transplant Recipients: A Case Series. {Author}: Caillard S;Thaunat O;Benotmane I;Masset C;Blancho G; {Journal}: Ann Intern Med {Volume}: 175 {Issue}: 3 {Year}: 03 2022 {Factor}: 51.598 {DOI}: 10.7326/L21-0598 {Abstract}: