There are really professionals who never stop their education and training to stay competitive in their chosen field. For instance, after graduating your Bachelors degree you continue studying to get your Masteral and then Phd.
In one of the sites I've stumbled upon, I learned that doctors undergo some advance training to teach them many competitive skills for various interviews. These medical trainings keep medical doctors competitive. On this site they offer, consulatant interview courses, medical interview course, medical management courses and teach the teacher course. This company , named Oxford Medical claims that they are one of the largest and best providers of medical interview skills training and other medical-related courses training in the UK.
If I was a medical doctor, I would also do everything to stay competitive.