Chaloner 2000b.
| Methods | Not available |
| Participants | Not available |
| Interventions | Two types of alternating pressure air surfaces |
| Outcomes | Not available |
| Notes | Unable to obtain full‐text |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.