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.
Comminution effectiveness of the two BWL output settings. On average the remaining stone mass >2 mm fell from 100% at the start to 21% at 10 minutes and 8% after 30 minutes. Seventy percent of stones were fully comminuted within 10 minutes, and 89% of stones were fully comminuted with 30 minutes. There was no statistical difference between the two settings (p = 0.44); both fragmented the stones effectively. The error bars represent the standard error. n = 23 for each setting.
