Comparing that list with the list of 28 proteins that are found to be significantly lower in non-survivors versus survivors at t1 in the Ferrara cohort, we observe a large overlap, including HRG, FETUB, AHSG, IGFALS, GPLD1, LCAT, TTR, SERPINC1, HPR, ITIH1, and ITIH2, all lower in abundance in the plasma of severe COVID-19 patients. Here, TTR is linked to COVID-19.