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For more information about CIRCLE contact Dr Peter Crooks, Principal Editor, by email on or fill in the feedback form below. 

Feedback form 

Have we missed a letter? Can you identify a place-name?

We would be very pleased to receive your feedback on these and any other matters, especially any corrections to the text of CIRCLE. Please send your comments to us through this form.  We will be very glad to acknowledge your assistance on our Personnel and Acknowledgments page.

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