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.
Default body mass versus time functions for human mothers and their offspring. The left and right vertical dotted lines indicate the times of conception and parturition, respectively. Body masses for human mothers after weaning are not shown because this information does not affect offspring dosimetry.
