preferred_name: Duodenal and Ampulla of Vater Neuroendocrine Tumor by AJCC v9 Stage
preferred_name_lc: duodenal and ampulla of vater neuroendocrine tumor by ajcc v9 stage
label: Duodenal and Ampulla of Vater Neuroendocrine Tumor by AJCC v9 Stage
label_lc: duodenal and ampulla of vater neuroendocrine tumor by ajcc v9 stage