I know we have members in medical profession who due to symptoms take pause to consider possible change in career.
Just saw this and am posting:
"April 10, 2015 -- The University of Pennsylvania School of Dental Medicine is offering a free, online course for the public to learn more about dentistry basics.
...Registration is now open on Coursera. The course begins June 1, and anyone with Internet access can register. However, students who want an official certificate verifying course completion will be charged a fee."
http://www.drbicuspid.com/index.aspx?sec=nws&sub=rad&pag=dis&ItemID=317669&wf=2227