Approaches for the treatment of perforated peptic ulcers: a network meta-analysis of randomized controlled trials - Wadewitz, Elisabeth; Friedrichs, Juliane; Grilli, Maurizio; Vey, Johannes; Zimmermann, Samuel; Sunami, Yoshiaki; Kleeff, Jörg H.; Ronellenfitsch, Ulrich; Klose, Johannes; Gomes dos Santos Ferreira Rebelo, Artur Luis (Langenbeck's archives of surgery, 2025)