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.
A, Unadjusted estimates. B, Estimates adjusted for age, specialty, fellowship, operating time, gender environment, relationship status, parental status, years in practice, and years at Southern California Permanente Medical Group.
