1. Daniel Wallis FACTBOX-Worldwide coronavirus cases cross 235.08 million, death toll at 5,009,716
https://www.reuters.com/business/healthcare-pharmaceuticals/worldwide-coronavirus-cases-cross-15903-million-death-toll-3444309-2021-05-11/
2. Chandola T, Kumari M, Booker CL, Benzeval M. The mental health impact of COVID-19 and lockdown-related stressors among adults in the UK. Psychol Med. 2020 Dec 7:1-10. doi: 10.1017/S0033291720005048. Epub ahead of print. PMID: 33280639; PMCID: PMC7783135.