Vandalism in Wikipedia: <a href="https://en.wikipedia.org/w/index.php?title=Cardiac_cycle&type=revision&diff=931959557&oldid=931856006" rel="nofollow">https://en.wikipedia.org/w/index.php?title=Cardiac_cycle&typ...</a><p>Reversion one day later: <a href="https://en.wikipedia.org/w/index.php?title=Cardiac_cycle&type=revision&diff=931959564&oldid=931959557" rel="nofollow">https://en.wikipedia.org/w/index.php?title=Cardiac_cycle&typ...</a>