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ECP (UK) Headquarters, Nutrition Research Centre, South Bank University, 103 Borough Road, London SE1 0AA, UK Fax: (+44) 1256 880 416. E-mail: [email protected] *This paper was an invited presentation of the 18th Annual Symposium of European Cancer Prevention Organisation (ECP): Precancerous lesions of the digestive tract held in Maastricht, The Netherlands, 12–14 October, 2000
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M J Hill (2001) studied this question.
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