CRISTAL: protocol for a cluster randomised, crossover, non-inferiority trial of aspirin compared to low molecular weight heparin for venous thromboembolism prophylaxis in hip or knee arthroplasty, a registry nested study
Verinder Singh Sidhu, Steven E Graves, Rachelle Buchbinder, Justine Maree Naylor, Nicole L Pratt, Richard S de Steiger, Beng H Chong, Ilana N Ackerman, Sam Adie, Anthony Harris, Amber Hansen, Maggie Cripps, Michelle Lorimer, Steve Webb, Ornella Clavisi, Elizabeth C Griffith, Durga Anandan, Grace O'Donohue, Thu-Lan Kelly, Ian A Harris
BMJ Open Nov 2019, 9 (11) e031657; DOI: 10.1136/bmjopen-2019-031657
