New active substances authorized in the United Kingdom between 1972 and 1994.

@article{Jefferys1998NewAS,
  title={New active substances authorized in the United Kingdom between 1972 and 1994.},
  author={David Jefferys and D. G. B. Leakey and J. A. Lewis and Stephanie R. Payne and Michael D Rawlins},
  journal={British journal of clinical pharmacology},
  year={1998},
  volume={45 2},
  pages={
          151-6
        }
}
AIMS The study was undertaken to assemble a list of all new active medicinal substances authorised in the United Kingdom between 1972 and 1994; to assess whether the pattern of introductions had changed; and to examine withdrawal rates and the reasons for withdrawal. METHODS The identities of those new active substances whose manufacturers had obtained Product Licences between 1972 and 1994 were sought from the Medicines Control Agency's product data-base. For each substance relevant… 

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