Complex sentence: Hill worked as a house officer at Doncaster Royal Infirmary, before quitting the medical profession because he "didn't feel in control of what was happening", though he is still registered on the General Medical Council's list of Registered Medical Practitioners.
Split into simpler sentences: Hill worked as a house officer at Doncaster Royal Infirmary, before quitting the medical profession because he "didn't feel in control of what was happening". Though he is still registered on the General Medical Council's list of Registered Medical Practitioners.