The appearance of a new edition of Professor Bradford Hill's manual, after three reprints of the third during the war years, is at once an indication of its successful appeal to the audience for whom the author wrote it and of a growing interest in the use of statistical methods as a tool of medical research.Its success is the more noteworthy in view of the fact that few medical schools as yet make provision for instruction of this sort as part of the undergraduate curriculum.
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A S St Leger (1996) studied this question.
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