Kato H, Furukawa K, Sato M, Okunaka T, Kusunoki Y, Kawahara M, et al. Phase II clinical study of photodynamic therapy using mono-L-aspartyl chlorin e6 and diode laser for early superficial squamous cell carcinoma of the lung. Lung Cancer 2003; 42: 103-111.
Usuda J, Ichinose S, Ishizumi T, Hayashi H, Ohtani K, Maehara S, et al. Outcome of photodynamic therapy using NPe6 for bronchogenic carcinoma in central airways > 1.0cm in diameter. Clin Cancer Res 2010; 16: 2198-2204.
Usuda J, Inoue T, Tsuchida T, et al. A pilot study of photodynamic therapy for peripheral type lung cancers. Photodynamic diagnosis and Photodynamic therapy 2020; 101698: 1-5