Homologous and Heterologous Covid-19 Booster Vaccinations.
N Engl J Med. 2022 Mar 17;386(11):1046-1057. doi: 10.1056/NEJMoa2116414. Epub 2022 Jan 26.
N Engl J Med. 2022.
PMID: 35081293
Free PMC article.
Clinical Trial.