Investigation of pure lung microbiota in patients with lung cancer after eliminating upper airway contamination: a prospective cohort study - Koyama, Tsutomu; Shimizu, Kimihiro; Mishima, Shuji; Matsuoka, Shunichiro; Takeda, Tetsu; Miura, Kentaro; Agatsuma, Hiroyuki; Eguchi, Takashi; Hamanaka, Kazutoshi; Yoshida, Kazuo (Journal of Thoracic Disease; Vol 16, No 11 (November 30, 2024): Journal of Thoracic Disease, 2024)