| Level/ Type |
Code |
Display Name |
Code System |
| 0‑L |
C2826346
|
Single Group Study (Research Activity)
|
Unified Medical Language System |
| 0‑L |
C2826345
|
Parallel Study (Research Study)
|
Unified Medical Language System |
| 0‑L |
C0150097
|
Cross-Over Studies (Research Activity)
|
Unified Medical Language System |
| 0‑L |
C2826344
|
Factorial Study (Research Study)
|
Unified Medical Language System |
| 0‑L |
C4553402
|
Group Sequential Design (Research Activity)
|
Unified Medical Language System |
| 0‑L |
C0205394
|
Other (Qualitative Concept)
|
Unified Medical Language System |
| 0‑L |
C1556044
|
other - No Information (Idea or Concept)
|
Unified Medical Language System |
| 0‑L |
C0439673
|
Unknown (Qualitative Concept)
|
Unified Medical Language System |
| 0‑L |
C0007328
|
Case-Control Studies (Research Activity)
|
Unified Medical Language System |
| 0‑L |
C0085973
|
Case Study (Intellectual Product)
|
Unified Medical Language System |
| 0‑L |
C4288565
|
Observational Case-Crossover Study (Research Activity)
|
Unified Medical Language System |
| 0‑L |
C4289598
|
Ecologic or Community Based Study (Research Activity)
|
Unified Medical Language System |
| 0‑L |
C0199236
|
Family Study (Diagnostic Procedure)
|
Unified Medical Language System |
| 0‑L |
C0282476
|
Twin Studies as Topic (Research Activity)
|
Unified Medical Language System |
| 0‑L |
C0009247
|
Cohort Studies (Quantitative Concept)
|
Unified Medical Language System |
| 0‑L |
C5544491
|
Birth Cohort Studies (Research Activity)
|
Unified Medical Language System |
| 0‑L |
C0681702
|
Trend Analysis (Functional Concept)
|
Unified Medical Language System |
| 0‑L |
C0681848
|
Panel Study (Research Activity)
|
Unified Medical Language System |
| 0‑L |
C0023981
|
Longitudinal Studies (Research Activity)
|
Unified Medical Language System |
| 0‑L |
C0010362
|
Cross-Sectional Studies (Research Activity)
|
Unified Medical Language System |
| 0‑L |
C0814865
|
time series study (Research Activity)
|
Unified Medical Language System |
| 0‑L |
C0034378
|
quality control (Functional Concept)
|
Unified Medical Language System |
|