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Matching in Analytical Studies William G. Cochran CopyRight*Presented before the Statistics Section of the American Public Health Association at the Eightieth Annual Meeting in Cleveland, Ohio, October 23, 1952. †Paper No. 288, Department of Biostatistics. Some of the theoretical results used in this paper were obtained under a research contract with the Office of Naval Research. https: //doi. org/10. 2105/AJPH. 43. 6Pt₁. 684 Published Online: September 06, 2011
William G. Cochran (Mon,) studied this question.
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