TY - BOOK AU - Levy, J AU - Eble,John N. ED - World Health Organization. ED - International Agency for Research on Cancer. TI - A practical approach to pediatric gastroenterology T2 - World Health Organization classification of tumours SN - 0815154194 PY - 1988/// CY - Chicago PB - , Yearbook N1 - Includes bibliographical references (p. 306-359) and index ER -