Impact of the UK COVID‐19 pandemic on HbA1c testing and its implications for diabetes diagnosis and management. Issue 4 (19th March 2021) - Holland, David; Heald, Adrian H.; Stedman, Mike; Green, Lewis; Scargill, Jonathan; Duff, Christopher J.; Hanna, Fahmy W.F.; Wu, Pensee; Halsall, Ian; Gaskell, Neil; Fryer, Anthony A.