Source:http://linkedlifedata.com/resource/umls/id/C0278535
NCI: Stage I includes: (T1, N0, M0); (T2, N0, M0). T1: Tumor invades submucosa. T2: Tumor invades muscularis propria. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 6th and 7th eds.)