Photodynamic therapy.
D055598:Chemical Phenomena; D002621:Chemistry; D002986:Clinical Trials as Topic; D004938:Esophageal Neoplasms / Q000188:drug therapy; D005260:Female; D005833:Genital Neoplasms, Female / Q000188:drug therapy; D006258:Head and Neck Neoplasms / Q000188:drug therapy; D006414:Hematoporphyrin Photoradiation; D006801:Humans; D008027:Light; D008175:Lung Neoplasms / Q000188:drug therapy; D009369:Neoplasms / Q000188:drug therapy*; D010778:Photochemotherapy; D012867:Skin / Q000187:drug effects / Q000528:radiation effects; D012878:Skin Neoplasms / Q000188:drug therapy; D001749:Urinary Bladder Neoplasms / Q000188:drug therapy