title: Erratum to: Up-Regulation of miR-21 Expression Predicate Advanced Clinicopathological Features and Poor Prognosis in Patients with Non-Small Cell Lung Cancer.
authors.affiliation: Department of Pulmonary Medicine, No. 88 Hospital of PLA, Taian, Shandong Province, People's Republic of China. drtianlei@163.com.
authors.forename: Lei
authors.initials: L
authors.lastname: Tian
authors.affiliation: Department of Pulmonary Medicine, No. 88 Hospital of PLA, Taian, Shandong Province, People's Republic of China.
authors.forename: Weiyu
authors.initials: W
authors.lastname: Shan
authors.affiliation: Department of Pulmonary Medicine, No. 88 Hospital of PLA, Taian, Shandong Province, People's Republic of China.
authors.forename: Yufei
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Pulmonary Medicine, No. 88 Hospital of PLA, Taian, Shandong Province, People's Republic of China.
authors.forename: Xuejun
authors.initials: X
authors.lastname: Lv
authors.affiliation: Department of Pulmonary Medicine, No. 88 Hospital of PLA, Taian, Shandong Province, People's Republic of China.
authors.forename: Xuehua
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Pulmonary Medicine, No. 88 Hospital of PLA, Taian, Shandong Province, People's Republic of China.
authors.forename: Caiyun
authors.initials: C
authors.lastname: Wei