Skip to main content

Govt building

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure access 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 National Library of Medicine: A National and International Resource; Presentation: University of Puerto Rico, 1982 May 6

 Digital Record
Identifier: 3797957e5147c450eec48dc21fd725bad