Association between Oxidative Stress Index and Lung Cancer Risk in Idiopathic Pulmonary Fibrosis: An Exploratory Retrospective Analysis

Kiyofumi Shimoji, Tetsu Hirakawa, Kakuhiro Yamaguchi, Shinjiro Sakamoto, Yasushi Horimasu, Takeshi Masuda, Taku Nakashima, Hironobu Hamada, Hiroshi Iwamoto