Comparison of Sublobar and Lobectomy in Small (2 Cm or Less 0.5<CTR<1) Non-small Cell Lung Cancer: a Prospective, Multicenter Randomized Controlled Study

"The minimize unit is the subsegment, the subloar group includes wedge resection, subsegmentectomy, segmentectomy.~It is recommended to perform intraoperative lymph node pathology (not mandatory). If lymph node metastasis is positive, we must switch to lobectomy+system lymph node dissection. lymph node sampling, selective lymph node dissection or systematic lymph node dissection are allowed in this group."

lobectomy+system lymph node dissection