Fig. 3From: Negative pressure wound therapy (NPWT) on closed incisions to prevent surgical site infection in high-risk patients in hepatopancreatobiliary surgery: study protocol for a randomized controlled trial—the NP-SSI trialStudy timeline. Patients who meet the inclusion criteria will be asked for their consent after information. At the end of the operation, the participants are randomized, and the intervention is performed according to the treatment group. During visit 3 the bandages are removed on day 7 and the endpoints are recorded as on days 30–37Back to article page