Research Article

Clinical, Biochemical, and ATR-FTIR Spectroscopic Parameters Associated with Death or Survival in Patients with Severe COVID-19

Figure 3

Proteins region analysis on hospitalized patients with severe COVID-19 who survived or died. (a) Second derivative of the ATR-FTIR spectra in the amide I region. (b) Alpha helix/β-sheets (median and RIQ) area ratio. (c) Urea peak (median and RIQ). U-Mann–Whitney analysis. , .
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