Letters to the editor may contain data or case reports but should be no longer than 400 words. Reviews of new books etc are published. Tables must have a caption and should be presented without vertical rules. Each column should have an abbreviated heading, and should state the units used. Illustrations should be used only when data cannot be expressed clearly in any other way.
Photographs are welcome.
Abbreviations should not be used except for units of measurement. Numerals up to nine should be spelt out, and those of 10 or over typed as figures, except at the beginning of a sentence, where they should be spelt. Decimal places should be given for percentages where baselines are 100 or greater. Generic names of drugs should be used wherever possible, though brand names with the manufacturer's name may follow in brackets. References to personal communications, unpublished data or data in preparation or submitted for publication cannot be included in the numbered list but, if essential, can be mentioned at the appropriate point in the text.