Complex sentence: For a time, Fairley worked for Martin at the Lister Institute in London where he qualified for membership of the Royal College of Physicians of London and received a Diploma of Public Health from the University of Cambridge.
Split into simpler sentences: For a time, he worked for Martin at the Lister Institute in London where he qualified for membership of the Royal College of Physicians of London. He also received a Diploma of Public Health from the University of Cambridge.