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.
Monthly averaged LDLC-CAL values for the female (top) and male groups during the 144 months interval between January 2007 and December 2018. Red lines represent the statistical linear regressions (see parameters in Table 1). Error bars represent the corresponding standard deviation
