Journal Article RESPIRATORY DISEASE IN CHILDHOOD Get access J. R. T. COLLEY, M.D B.Sc. J. R. T. COLLEY, M.D B.Sc. Department of Medical Statistics and Epidemiology, London School of Hygiene and Tropical Medicine, University of London Search for other works by this author on: Oxford Academic PubMed Google Scholar British Medical Bulletin, Volume 27, Issue 1, January 1971, Pages 9–13, https://doi.org/10.1093/oxfordjournals.bmb.a070822 Published: 01 January 1971
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J R Colley (1971) studied this question.