blood pressure measurement using the auscultatory method based on the (first) <a href="https://en.wikipedia.org/wiki/Korotkoff_sounds" class="extiw" title="w:Korotkoff sounds">Korotkoff-sound</a>
<a href="//commons.wikimedia.org/wiki/User:PhilippN" title="User:PhilippN">PhilippN</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span> with <a href="https://en.wikipedia.org/wiki/OpenOffice.org" class="extiw" title="w:OpenOffice.org">OpenOffice.org</a>