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. Drew, Charles R., John Scudder, and Jean Papps. "Controlled Fluid Therapy: With Hematocrit, Specific Gravity, and Plasma Protein Determinations." Surgery, Gynecology and Obstetrics 70, 5 (May 1940): 859-867. Article. 9 Images.. Surgery, Gynecology and Obstetrics