In a coordinated effort with the editors of the World Health Organization's books on histologic typing*, all terms in the WHO Blue Books will be included in ICD-O-3 and new editions of the Blue Books will include ICD-O-3 numbers in their type lists.
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* International Histological Classification of Tumours, Second Edition. Geneva: World Health Organization. Twenty-two fascicles in this series have been published between 1991 and 2000.