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.
3D printed urological models for training and education: (A) prostate cancer (from ref.[35] licensed under a Creative Commons Attribution 4.0 International License), (B) kidney cancer (from ref.[35] licensed under a Creative Commons Attribution 4.0 International License) and (C) kidney cancer (from ref.[38] licensed under a Creative Commons Attribution License), and (d) kidney stone [reproduced from ref.[47] with the kind permission of Dr. Lütfi Canat (private communication)].
