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.
Recent aids in the differential diagnosis of typhoid fever: describing the author's modification of Ehrlich's test, with a preliminary report upon the serum test of Widal
Recent aids in the differential diagnosis of typhoid fever: describing the author's modification of Ehrlich's test, with a preliminary report upon the serum test of Widal