Blood type, genes tied to risk of severe COVID-19: European study - Reuters
https://www.reuters.com/article/us-health-coronavirus-genes/blood-type-genes-tied-to-risk-of-severe-covid-19-european-study-idUSKBN23P38C
COVID-19 and Blood Type | Harvard Medical School
https://hms.harvard.edu/news/covid-19-blood-type
Genes, Blood Type Tied to Risk of Severe COVID-19 – NIH Director's Blog
https://directorsblog.nih.gov/2020/06/18/genes-blood-type-tied-to-covid-19-risk-of-severe-disease/
Study Finds Two Genetic Variants Associated With COVID-19 Susceptibility | Technology Networks
https://www.technologynetworks.com/genomics/news/study-finds-two-genetic-variants-associated-with-covid-19-susceptibility-336361