Author:
Williams Roger,Crossley I. R.
Reference19 articles.
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2. Williams R. 1972. Br Med Bull 28: 114–119
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4. Gazzard BG, Portmann B, Murray-Lyon IM, Williams R. 1975. Quat J Med 176: 615–26
5. Macdougall BRD, Bailey RJ, Williams R. 1977. Lancet 1: 617–619