A randomised controlled trial of plasma exchange compared to standard of care in the treatment of severe COVID-19 infection (COVIPLEX). - Arulkumaran, Nishkantha; Thomas, Mari; Stubbs, Matthew; Prasanna, Nithya; Subhan, Maryam; Singh, Deepak; Ambler, Gareth; Waller, Alessia; Singer, Mervyn; Brealey, David; Scully, Marie (Scientific Reports, 2024)