| Participant ID | Centre | Role in HAND-1 study |
|---|---|---|
| Surgeon A | Centre 3 | Recruiter |
| Surgeon B | Centre 2 | Lead recruiter at centre 2 |
| Surgeon C | Centre 1 | Lead recruiter at centre 1/TMG member |
| Research nurse A | Centre 3 | Research nurse |
| Research nurse B | Centre 2 | Research nurse |
| Research nurse C | Centre 1 | Research nurse/assistant |
| TMG member A | N/A | TMG member |