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.
Periodical. Osler, William. "Tuberculous Pericarditis." American Journal of the Medical Sciences 105, (1893): 20-37. Article. 9 Images.. American Journal of the Medical Sciences