Bulletin of the World Health Organization
Volume 98, Number 7, July 2020, 441-508
https://www.who.int/bulletin/volumes/98/7/en/

Variant analysis of SARS-CoV-2 genomes
— Takahiko Koyama, Daniel Platt & Laxmi Parida
http://dx.doi.org/10.2471/BLT.20.253591