| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Purpose of radiotherapy | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiotherapy of corneal lesion | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| External beam radiation therapy particulate radiation | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Stereotactic radiosurgery | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radioimmunotherapy | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Electromagnetic energy therapy | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Intracavitary brachytherapy | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| X-ray therapy - external | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| External beam radiation therapy procedure | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Betatron external beam radiation therapy | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Vaginal cone irradiation | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Hemibody irradiation | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Total body irradiation | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiation therapy procedure or service | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radionuclide therapy | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Destruction of lesion of choroid by radiation therapy | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Stereotactic focused gamma radiosurgery of cerebrum | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Gamma ray therapy | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Oral radiation | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Short distance and contact radiotherapy | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Combined radiotherapy | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiosensitizing measure | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radioprotective drug | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Support transfusion therapy | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Supportive pharmacotherapy | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Combined therapy follow-up | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiotherapy treatment groups | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiotherapy - internal | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| External radiotherapy NOS | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Other radiotherapy miscellaneous | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Preoperative course of radiotherapy | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiotherapy - intraoperative control | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Postoperative course of radiotherapy | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Stereotactic cobalt external beam radiation therapy | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiotherapy to orbital lesion | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Post-radiotherapy laryngeal edema | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Post-radiotherapy laryngitis | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Mucositis following radiation therapy | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Generalized enamel hypoplasia associated with radiation therapy | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiotherapy-induced hypopituitarism | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiotherapy to lesion of peripheral nerve | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiotherapy to lacrimal gland | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Adverse effect of radiation therapy | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Postirradiation testicular hypofunction | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiotherapy as the cause of abnormal reaction of patient, or of later complication, without mention of misadventure at the time of procedure | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiotherapy to lesion of eyelid | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiotherapy to ciliary body | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiotherapy to retina | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Post-radiotherapy telangiectasis of vocal cord | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiotherapy to lesion of canthus | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Somnolence syndrome | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Selectron therapy | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Iridium wire therapy | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Stereotactic radiotherapy | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Postirradiation ovarian failure | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radionuclide therapy | Is a | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiological procedure and radiotherapy as the cause of abnormal reaction of patient, or of later complication, without mention of misadventure at the time of procedure | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiological procedure as the cause of abnormal reaction of patient, or of later complication, without mention of misadventure at the time of procedure | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiological procedure or radiotherapy as the cause of abnormal reaction of patient, or of later complication, without mention of misadventure at the time of procedure | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Dermatosis caused by therapeutic ionizing irradiation | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Oral ulceration due to radiation burn | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Ulceration of skin caused by therapeutic ionizing radiation | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiotherapy scar | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Cicatricial alopecia caused by ionizing radiation | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiation-induced skin malignancy | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Xerostomia caused by ionizing radiation | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiation-induced dermatosis | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Post-radiotherapy pneumonitis | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Pulmonary fibrosis due to and following radiotherapy | Temporally follows | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Mucositis following radiation therapy | After | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier | 3 | 
| Generalized enamel hypoplasia associated with radiation therapy | After | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier | 3 | 
| Post-radiotherapy laryngeal edema | After | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier | 3 | 
| Post-radiotherapy laryngitis | After | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier | 5 | 
| Post-radiotherapy telangiectasis of vocal cord | After | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier | 1 | 
| Radiotherapy-induced hypopituitarism | After | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier | 2 | 
| Adverse effect of radiation therapy | After | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier | 2 | 
| Postirradiation testicular hypofunction | After | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier | 1 | 
| Postirradiation ovarian failure | After | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier | 3 | 
| Radiological procedure and radiotherapy as the cause of abnormal reaction of patient, or of later complication, without mention of misadventure at the time of procedure | After | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiological procedure as the cause of abnormal reaction of patient, or of later complication, without mention of misadventure at the time of procedure | After | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiotherapy as the cause of abnormal reaction of patient, or of later complication, without mention of misadventure at the time of procedure | After | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiological procedure or radiotherapy as the cause of abnormal reaction of patient, or of later complication, without mention of misadventure at the time of procedure | After | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Post-radiotherapy pneumonitis | After | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier | 3 | 
| Pulmonary fibrosis due to and following radiotherapy | After | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier | 2 | 
| Somnolence syndrome | After | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Basal cell carcinoma recurrent following radiotherapy | After | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Dermatosis caused by therapeutic ionizing irradiation | After | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier | 3 | 
| Oral ulceration due to radiation burn | After | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Ulceration of skin caused by therapeutic ionizing radiation | After | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier | 4 | 
| Radiotherapy scar | After | True | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier | 3 | 
| Cicatricial alopecia caused by ionizing radiation | After | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiation-induced skin malignancy | After | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Xerostomia caused by ionizing radiation | After | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiation-induced dermatosis | After | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Intermediate distance curietherapy | Is a | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Immunodeficiency secondary to radiation therapy | Associated with | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Generalized enamel hypoplasia associated with radiation therapy | Associated with | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Adverse effect of radiation therapy | Associated with | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Postirradiation testicular hypofunction | Associated with | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Postirradiation ovarian failure | Associated with | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  | 
| Radiological procedure and radiotherapy as the cause of abnormal reaction of patient, or of later complication, without mention of misadventure at the time of procedure | Associated with | False | Radiation oncology AND/OR radiotherapy | Inferred relationship | Existential restriction modifier |  |