Quality-of-care initiative in patients treated surgically for perforated peptic ulcer

Morten Hylander Møller, Heidi Jeanet Larsson, Steffen Jais Rosenstock, H Jørgensen, S P Johnsen, A H Madsen, S Adamsen, A G Jensen, Erik Zimmermann-Nielsen, R W Thomsen, Danish Clinical Register of Emergency Surgery