To propose 'never-smoking nonsmall cell lung cancer (NSCLC)' as a separate entity, the clinicopathologic differences of operable NSCLC between never-smoking patients and patients with a history of smoking were investigated.
Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Kyushu, Higashi-ku, Fukuoka, Japan. tokujiro@surg2.med.kyushu-u.ac.jp
