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. 1987 Jul;80(7):467.

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The authors reply

H P Roper

¹Department of Child Health, University of Manchester

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T J David

¹Department of Child Health, University of Manchester

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¹

¹Department of Child Health, University of Manchester

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PMCID: PMC1290926

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Articles from Journal of the Royal Society of Medicine are provided here courtesy of Royal Society of Medicine Press

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