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.
DPP4 concentrations in three COVID-19 patients measured several days after the diagnosis and their admission to the intensive care unit. Two COVID-19 patients who recovered without invasive mechanical ventilation and one mechanically ventilated patient are showed.
