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Endoscopic photodynamic therapy with hematoporphyrin derivative for primary treatment of gastrointestinal neoplasms in inoperable patients

PhotochemistryPhotodynamic TherapyHematoporphyrin DerivativeGastroenterologyGi TechniqueInoperable PatientsSurgeryInterventional EndoscopyPhotosensitizersMedicineRadiation OncologyEndoscopic Photodynamic TherapyHealth Sciences