Book excerpt: For those preparing for certification or recertification in hematology or oncology, Hoffman and Abeloff's Hematology-Oncology Review is a single-volume source of authoritative, up-to-date exam preparation. This unique question and answer review helps you succeed on today's board exams with more than 1,000 board-style questions, answers, and rationales; comprehensive coverage of essential exam topics, and online practice tests. - Includes 1,000+ board-style questions with answers and rationales explaining both correct and incorrect answers. - Covers a broad range of topics compiled by experts in hematology and oncology, including cancer biology and genomics, immunotherapy, hematologic malignancies, solid tumor malignancies, non-malignant hematology, and supportive care. - Uniquely designed as both a standalone review and a study companion to Abeloff's Clinical Oncology and Hematology: Basic Principles and Practice.