Fig. 1.
Principle component analysis (PCA) score plot of plasma metabolic profiles of ESCC patients and healthy controls. (A) Training set and (B) test set. C: ESCC patient; N: healthy control.
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.