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Samples Used by Step
| Multisite Sample | Chronic Illness Sample | |||
|---|---|---|---|---|
| ME and CFS | Control | ME and CFS | MS | |
| Step 1. Prevalence | X | |||
| Step 2. Decision Trees | X | X | X | X |
| Step 3. Item Selection | X | X | X | X |
| Step 4. Case Definition Modification | This step did not involve quantitative analysis | |||
| Step 5. Case Definition Comparison | X | X | ||
