Fig. 1.
Tear cytokine levels in controls and COVID-19 patients. Data are expressed as mean (pg/mL) + standard deviation (SD). * (p < 0.05); ** (p < 0.01).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.