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Proportion (“Prop.” within the figure) of patients reporting otolaryngologic COVID-19 symptoms. “t0” refers to baseline. “t1” refers to follow-up period after 10 days. Results of the control group are reported on the left (“Control”) and those of the treatment group are reported on the right (“Treatment”). Note. *p ≤ 0.05, **p ≤ 0.01, ***p ≤ 0.001.
