"Across all markets a surprising 75% of doctors in the 51-60 age groups stated that they regularly used Wikipedia for professional use."
http://www.responsesource.com/releases/rel_display.php?relid=65076
They edit a lot too.
It is unlikely that any doctor while under oath in discovery or testifying at a trial would admit that they consulted Wikipedia regarding any matter, especially regarding any erroneous information they may have relied on.
Fred