D. Wappner,E. Bergel and F. P. Polack. Plasma Therapy to Prevent Severe Covid-19 in Older Adults. Reply. N Engl J Med. 2021;384(25):10.1056/NEJMc2104747.
D. Wappner,E. Bergel and F. P. Polack. Plasma Therapy to Prevent Severe Covid-19 in Older Adults. Reply. N Engl J Med. 2021;384(25):10.1056/NEJMc2104747.