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.
Orange lines represent an abundance ratio of 1. a. The. Red circles: set I, black squares: set II. Magenta line: linear fitting (Y = 0.08+0.89X, R2 = 0.95). Distorting residues are marked in blue based on the main set.
