The origin and early spread of SARS-CoV-2 in Europe.
Proc Natl Acad Sci U S A. 2021 Mar 2;118(9):e2012008118. doi: 10.1073/pnas.2012008118.
Proc Natl Acad Sci U S A. 2021.
PMID: 33571105
Free PMC article.