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.
Abbreviations: BCS, breast conserving surgery; CAM, complementary and alternative medicine; CASP, critical appraisal skills programme; CIS, cancer information service; DCIS, ductal carcinoma in situ; HCC, hepatocellular cancer; NOS, newcastle‐ottawa scale; OR, odds ratio; SES, socio‐economic status; SO, second opinion.
