Related Variables
visitdt |
Interim Follow-up: Days from index date to follow-up visit
For polysomnography visit, refer to :stdydtqa: (SHHS1) and :stdatep: (SHHS2) |
Administrative/Interim |
visitdt |
Interim Follow-up: Days from index date to follow-up visit
For polysomnography visit, refer to :stdydtqa: (SHHS1) and :stdatep: (SHHS2) |
Administrative/Interim |