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.
Caricature: A woman sitting on a love seat is looking at the back of the head of a man sitting in a chair to her left; the man is apparently resting after eating a large meal.
Copyright:
The National Library of Medicine believes this item to be in the public domain. (More information)