C117455Level 6
Date and Time of First Study Treatment
**Semantic type:** Temporal Concept
**Definition:** The date and time of the subject's first study treatment.
**Synonyms:** - RFXSTDTC
GET
/api/v1/systems/nci_thesaurus/nodes/C117455Hierarchy Explorer
Loading...
Cross-system equivalences0
No cross-system equivalences mapped for this node.