Source:http://linkedlifedata.com/resource/umls/id/C1336128
NCI: Stage IB1 includes: T1b1, N0, M0. T1b1: Clinically visible lesion 4.0 cm or less in greatest dimension. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 6th and 7th eds.) (AJCC 6th and 7th eds.)