The phrase "a professional which" is not correct in standard written English.
The correct relative pronoun to use with "professional" is "who" when referring to people.
Example: "She is a professional who specializes in marketing strategies."
Alternatives: "a professional that" or "a professional who".
Dr D was a professional, which is to say I knew nothing about her.
When I went to its page I discovered that the audiobook is read by someone else: a professional, which was a terrible disappointment.
By 11, she was a professional, which meant training eight hours a day, competing internationally and receiving a small government salary and a tutor.
Martin has now completed 40 matches as a professional, which is surprising because he looks as if he has played many more.
The 23-year-old Wie has won only twice as a professional, which is not representative at all of the hype that surrounded her as a teenage player.
For most of my working life as a professional, which began over 40 years ago, what kick-started the day was a large scotch and soda.
It also helps you feel more confident and productive — and a little more like a working professional, which is what you are.
I understand that your have two roles to satisfy, a celebrity figure and a medical professional, which I imagine can be difficult to juggle.
The test is then carried out by a medical professional, which does not necessarily mean a doctor.
Some costs associated with both methods have not been considered here, including the initial treatment consultation with a health professional, which does not affect the comparative costs.
Professional identity not only draws attention to the process of 'becoming' a health professional, which involves both personal and professional identity dimensions [ 22].
