Where used:
| Attribute | ACTIVITY GROUP TYPE | references in description Cancer Treatment Period |
| Attribute | CANCER TREATMENT MODALITY | references in description Cancer Treatment Period |
| Attribute | RADIOTHERAPY TREATMENT MODALITY | references in description Cancer Treatment Period |
| Data Element | DECISION TO TREAT DATE (RADIOTHERAPY TREATMENT EPISODE) | references in description Cancer Treatment Period |
| Data Element | TREATMENT START DATE (RADIOTHERAPY TREATMENT EPISODE) | references in description Cancer Treatment Period |
| Supporting Information | Cancer Treatment Period | references in description Cancer Treatment Period |
| Supporting Information | Cancer Treatment Period Start Date | references in description Cancer Treatment Period |
| Supporting Information | Reasonable Offer | references in description Cancer Treatment Period |
