ProctitisEnemaPelvic NeoplasmsRadiation InjuriesArgonAdministration, RectalRadiotherapyPelvisRectumGastrointestinal HemorrhageLymphogranuloma VenereumFormaldehydeRadiation DosageRadiation, IonizingProctocolitisAntidiarrhealsRectal NeoplasmsRectal DiseasesDose-Response Relationship, RadiationBarium SulfateSuppositoriesRadiation ToleranceMesalamineRadiationColitis, UlcerativeRadiation ProtectionCombined Modality TherapyRadiotherapy DosageTreatment OutcomeRadiation MonitoringBrachytherapyUterine Cervical NeoplasmsRadiotherapy, AdjuvantRadiation Injuries, Experimental