title: Photodynamic therapy for early stage central type of lung cancer.
authors.forename: H
authors.initials: H
authors.lastname: Kato
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000188:drug therapy* / Q000601:surgery; D002986:Clinical Trials as Topic; D003362:Cost-Benefit Analysis; D006414:Hematoporphyrin Photoradiation / Q000191:economics / Q000379:methods*; D006801:Humans; D008175:Lung Neoplasms / Q000188:drug therapy* / Q000601:surgery