SEARCH Articles Figures Tables Photodynamic therapy cancer treatment Photodynamic therapy treatment Photodynamic treatment cell death Photodynamic treatment clinical development Photodynamic treatment cytotoxic species Photodynamic treatment effects Photodynamic treatment killing effects Photodynamic treatment light activation Photodynamic treatment oxygen Photodynamic treatment photosensitized oxidations Photodynamic treatment photosensitized reactions Photodynamic treatment virus inactivation Selectivity of photodynamic treatment Singlet Oxygen and Photodynamic Therapy for Cancer Treatment