nuffield professor of clinical medicine nuffield professor of clinical medicine the nuffield professorship of clinical medicine is a chair at the university of oxford. created by the endowment of william morris, 1st viscount nuffield, it was established in 1937. the chair is associated with a fellowship of magdalen college, oxford. list of nuffield professors of clinical medicine 1937–1965: leslie john witts 1965–1974: paul bruce beeson 1974–1992: sir david weatherall 1992–2002: sir john bell 2004–2016: sir peter ratcliffe 2019–present: richard cornall