claim: mucus damage stimulated by ifn-ahr signaling triggers hypoxia of covid-19
evidence_1: together, these results suggest that mucus is likely to be produced in the lung epithelial cells of covid-19 patients.", "7: a schematic for ahr-upregulated mucins in the hypoxia of covid-19 patients.", "1a), suggesting that mucus-like substance might be present in the bal of covid-19 patients.")