4.38. Analysis.
Comparison 4 Exclusive breastfeeding for 6‐7 months versus 3‐4 months, developed countries, observational studies, Outcome 38 Serum ferritin concentration < 10 mcg/L at 12 months.
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.