GP6 and COVID-19: As shown in Table S1, 10 GPs (GP1, GP3, GP5, GP11, GP13, GP17, GP20, GP21, GP22, and GP23) were significantly higher in COVID-19 patients than that of the controls (Table S2), whereas another 12 GPs (GP2, GP4, GP6, GP8, GP9, GP10, GP12, GP14, GP16, GP18, GP19, and GP24) were lower in COVID-19 patients.