RT Journal Article SR Electronic T1 Drug advertising and prescribing JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 538 OP 541 VO 28 IS 194 A1 Richard Dajda YR 1978 UL http://bjgp.org/content/28/194/538.abstract AB A study of the amount of drug advertisements received by general practitioners and the amount of the drugs practitioners prescribed showed a strong correlation of 0ยท80. Analysis suggests that a straight line graphic relationship provides the best fit for the results obtained. Further analysis of the quantity of advertising in relation to the amount of prescribing revealed two groups of drugs: those which were relatively more and those which were relatively less often advertised in proportion to the number of prescriptions issued for them.