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.
Mortality rates of patients related to phaeochromocytoma or paraganglioma surgery. White bars represent patients without α-receptor blockade, red bars patients with α-receptor blockade. There was no significant difference in the mortality rate.
