Sports medicine leaders working with government and public health to plan a 'return-to-sport' during the COVID-19 pandemic: the UK's collaborative five-stage model for elite sport. Issue 1 (13th July 2020) - Kemp, Simon; Cowie, Charlotte M; Gillett, Mark; Higgins, Richard; Hill, Jerry; Iqbal, Zafar; Jackson, Paul; Jaques, Rod; Larkin, Jo; Phillips, Gemma; Peirce, Nicholas; Calder, James