Version 9 of the American Joint Committee on Cancer (AJCC) Cancer Staging System for Neuroendocrine Tumors of the Duodenum and Ampulla of Vater. The new Version 9 content is presented in a streamlined, easy-to-use format, incorporates the World Health Organization (WHO) Classification of Tumors histology codes. Physicians, registrars, researchers, and other content users will be benefit from the updated content, including tables, explanatory notes and illustrations. Version 9 of the Neuroendocrine Tumors of the Duodenum and Ampulla of Vater Cancer Staging System becomes effective on January 1, 2024 and replaces the 8th Edition Neuroendocrine Tumors of the the Duodenum and Ampulla of Vater content.
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