title: Pressure on doctors to prescribe needs measuring directly
authors.affiliation: Department of Medical Statistics and Evaluation, Imperial College School of Medicine, Hammersmith Hospital, London W12 0NN o. ukoumunne@rpms.ac.uk, o.ukoumunne@ic.ac.uk.
authors.initials: OC
authors.lastname: Ukoumunne
authors.initials: N
authors.lastname: Britten