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.
Memoir of Samuel D. Gross, M.D., LL.D., D.C.L., emeritus professor of surgery in the Jefferson Medical College of Philadelphia
Memoir of Samuel D. Gross, M.D., LL.D., D.C.L., emeritus professor of surgery in the Jefferson Medical College of Philadelphia