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.
The American hospital of the twentieth century: a treatise on the development of medical institutions, both in Europe and in America, since the beginning of the present century
The American hospital of the twentieth century: a treatise on the development of medical institutions, both in Europe and in America, since the beginning of the present century