Complex sentence: He is a professor of general practice, a GP for three sessions a week, the head of a research centre on patient safety in primary care and, shortly, chair of a wide-ranging review of all postgraduate medical exams.
Split into simpler sentences: He is a professor of general practice, a GP for three sessions a week and is the director of a research centre on patient safety in primary care. He has chaired a wide-ranging review of all postgraduate medical exams.