957 / 1851
Matsugama H. et al. Interact Cardiovasc Thorac Surg 2008;7
Single N2+
Multiple N2+
DFS
OS
PORT utility according to N2 status (Single vs Multiple nodes)
Retrospective study
91 patients
Enrollment: 1986-2003
PORT
more effective in
multiple station
than single
station metastasis
Prospective randomized
phase
III trial is warranted