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.
The meta-regression analysis on the relation between selected fatty acids concentration in human milk and year of sample collection. β and P values were derived from meta-regression analysis after adjustment for sample size, study regions, and lactation stages. Each circle represents a study, and the size of the circle represents the weight of the study.
