Early initiation of...Early initiation of prophylactic anticoagulation for prevention of coronavirus disease 2019 mortality in patients admitted to hospital in the United States: cohort study;, , , , , , , , , , , , , , , , , , , , , , 1Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK2VA Connecticut Healthcare System, US Department of Veterans Affairs, West Haven, CT, USA3Cardiovascular Division, Vanderbilt University Medical Center and Vanderbilt Translational and Clinical Cardiovascular Research Center, Nashville, TN,...…Early initiation of...Early initiation of prophylactic anticoagulation for prevention of coronavirus disease 2019 mortality in patients admitted to hospital in the United States: cohort study;, , , , , , , , , , , , , , , , , , , , , , 1Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK2VA Connecticut Healthcare System, US Department of Veterans Affairs, West Haven, CT, USA3Cardiovascular Division, Vanderbilt University Medical Center and Vanderbilt Translational and Clinical Cardiovascular Research Center, Nashville, TN,...WW…