C168850Level 8
Age in Days at Start of Treatment Course
**Semantic type:** Organism Attribute
**Definition:** Age of subject (in days) at the start of the course of treatment.
**Synonyms:** - AGE_AT_COURSE_START - AGE_AT_COURSE_START - AGE_AT_COURSE_START - AGE_AT_COURSE_START - AGE_AT_COURSE_START - Age at Start of Treatment Course - Age in Days at Treatment Start
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