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.
‘Successful strict rate control’: average 72 + 7 bpm, ‘failed strict rate control’: average 86 + 14 bpm and ‘lenient rate control’: average 93 + 8 bpm. Reproduced with permission from Groenveld, et al., 2013.69
