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Duplicate prescriptions: an aid to research and review
J. G. Hamley, S. V. Brown, J. Crooks, L. J. Christopher, D. Dingwall, J. C. Murdoch, J. D. E. Knox, A. W. Patterson and a group of Tayside general practitioners
The Journal of the Royal College of General Practitioners 1981; 31 (232): 648-650.
