| English | eng-000 |
| recruitment of participants | |
| dansk | dan-000 | rekruttering af deltagere |
| Deutsch | deu-000 | Probandengewinnung |
| ελληνικά | ell-000 | προσελκυση συμμετεχοντων |
| suomi | fin-000 | osallistujien rekrytointi |
| français | fra-000 | recrutement |
| italiano | ita-000 | reclutamento dei partecipanti |
| Nederlands | nld-000 | werving |
| bokmål | nob-000 | rekruttering av deltakere |
| português | por-000 | recrutamento de participantes |
| español | spa-000 | captación de participantes |
| svenska | swe-000 | deltagarvärvning |