Obstructive sleep apnoea trials, also abroad
367 open Obstructive sleep apnoea trials worldwide. Travel and costs are your own unless the study pays them; ask the study team first.
| Country | Open trials |
|---|---|
| United States | 118 |
| China | 40 |
| France | 37 |
| Taiwan | 22 |
| Belgium | 20 |
| All other countries |