COVID-19(53) Patient(25) D-dimer(14) SARS-CoV-2(11) with COVID-19(9) Blood(9) Factor(8) coronavirus disease(8) elevated(8) COVID-19 patient(8) Laboratory(8) outcome(8) Coagulation(8) disease severity(8) antibodies(7) severity(7) progression(7) help(7) performed(7) Analysis(7) antibody(7) Platelet(7) plasma(7) Mortality(7) severe COVID-19(7) disorder(6) fibrinogen(6) COVID‐19(6) syndrome(6) COVID-19 infection(6)