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.
Validation of the prognostic model nomogram. (A) Nomogram. (B) Time ROC curve of training set. (C) Time ROC curve of the validation set. (D) The C-index calibration curve for age, gender, risk score, and nomogram of the training set. (E) Validate the C-index calibration curve for age, gender, risk score, and nomogram.
