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.
Interior view of physician's office: A physician offers two bottles of medicine to a patient, the price of which startles the patient; a sign on the wall indicates that consultations are free.
Copyright:
The National Library of Medicine believes this item to be in the public domain. (More information)