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.
Principal component analysis of serum samples from the training group (n=31) and the QC sample using the (A) positive ion mode and (B) negative ion mode. Log I Pareto (DA) is a PCA method, which refers to the analysis in Pareto mode after Log conversion. Each dot represents a single sample. Red square represents the chemo-sensitive group, the black diamond represents the chemo-resistant group, and the green triangle represents the QC group. QC, quality control.
