Knight 1999.
| Methods | Not available |
| Participants | Not available |
| Interventions | Pressure relieving surfaces that cannot be defined |
| Outcomes | Not available |
| Notes | Unable to obtain full‐text |
| Methods | Not available |
| Participants | Not available |
| Interventions | Pressure relieving surfaces that cannot be defined |
| Outcomes | Not available |
| Notes | Unable to obtain full‐text |