RT Journal Article SR Electronic T1 Duplicate prescriptions: an aid to research and review JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 648 OP 650 VO 31 IS 232 A1 J. G. Hamley A1 S. V. Brown A1 J. Crooks A1 L. J. Christopher A1 D. Dingwall A1 J. C. Murdoch A1 J. D. E. Knox A1 A. W. Patterson A1 a group of Tayside general practitioners YR 1981 UL http://bjgp.org/content/31/232/648.abstract AB We describe a method of studying patterns of prescribing and related morbidity in general practice. Prescribing data were automatically duplicated onto a `no-carbon-required' prescription-pad. Additional information about diagnosis and indications for each drug, an indication of whether the drug was newly prescribed or a repeat, and a patient identification code were entered onto the bottom copy. A computer was used to process the data, which were gathered over a period of seven months. The method offers an efficient means of collecting data which can be applied by individuals or groups of doctors to improve patient care and help achieve rational prescribing.