Genomic epidemiology reveals multiple introductions of SARS-CoV-2 from mainland Europe into Scotland. - da Silva Filipe A; Shepherd JG; Williams T; Hughes J; Aranday-Cortes E; Asamaphan P; Ashraf S; Balcazar C; Brunker K; Campbell A; Carmichael S; Davis C; et al. (Nature microbiology, 2021)