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.
Number of patients whose first set of samples was representative for adrenal venous blood (white columns), representative samples were obtained before the procedure was terminated (gray columns), or where representative samples were not obtained (black columns) as a function of study number.
This work is licensed under a