A plasmid DNA-launched SARS-CoV-2 reverse genetics system and coronavirus toolkit for COVID-19 research. - Rihn SJ; Merits A; Bakshi S; Turnbull ML; Wickenhagen A; Alexander AJT; Baillie C; Brennan B; Brown F; Brunker K; Bryden SR; Burness KA; et al. (PLoS biology, 2021)