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Number of interviews per group and location.
| Location | HP | PD | HD | PSS | RA | IBD |
|---|---|---|---|---|---|---|
| Kiel | 11 | 12 | 5 | |||
| Münster | 6 | 4 | ||||
| Newcastle | 2 | 11 | 1 | |||
| Rotterdam | 2 | 6 |
HP: healthy participants; PD: Parkinson's disease; HD: Huntington's disease; PSS: primary Sjögren's syndrome; RA: rheumatoid arthritis; IBD: irritable bowel disease.
