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Author's reply

BMJ 1994; 309 doi: (Published 10 December 1994) Cite this as: BMJ 1994;309:1581
  1. Pekka J Karhunen, Professor
  1. Department of Public Health, University of Tampere, POB 607, 33101 Tampere, Finland.

    EDITOR,—We did make a mistake in our conversion from millilitres to fluid ounces, and the calculations of Mark L Tattersall and Sally White are correct. Luckily, our conversion from millilitres to pints seems to be correct.

    We are indeed not familiar with imperial measures. Moreover, if we apply American measures then 1 fl oz is 29.6 ml. We used grams, …

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