eTable 1. Search strategy*.
| ID | Search |
| #1 | “Negative-Pressure Wound Therapy” (Mesh) |
| #2 | “Vacuum” (Mesh) AND "Wound Healing” (Mesh) |
| #3 | negative pressure wound therapy |
| #4 | vacuum assisted closure |
| #5 | vacuum assisted wound |
| #6 | vacuum dressing |
| #7 | subatmospheric pressure |
| #8 | topical negative pressure |
| #9 | (#1 OR #2 OR #3 OR #4 OR #5 OR #6 OR #7 OR #8) |
| #10 | “Random Allocation” (Mesh) |
| #11 | “Randomized Controlled Trials as Topic” (Mesh) |
| #12 | “Randomized Controlled Trial” (Publication Type) |
| #13 | randomiz* OR randomis* |
| #14 | (#10 OR #11 OR #12 OR #13) |
| #15 | (#9 AND #14) |
*Search strategy for research on November 7, 2010 in the electronic literature databases PubMed and the Cochrane Library´s Clinical Trials