TY - RPRT TI - Substitutions and codon usage in SARS-CoV-2 in mammals indicate natural selection and host adaptation AU - Lei, Z. AU - Zhang, D. AU - Liu, L. PY - 2021 DO - 10.1101/2021.04.04.438417 UR - https://www.biorxiv.org/content/10.1101/2021.04.04.438417v1 ID - 10.1101/2021.04.04.438417 ER -