Invited Commentary: Associations between adverse outcomes for surgical admissions and nurse understaffing – a longitudinal study

Petter Frühling, MD, PhD,¹ and Patricia Tejedor, MD, PhD²

1. Hepatobiliary and Pancreatic Unit, Department of Surgery, Department of Surgical Sciences, Uppsala University Hospital, Sweden.
2. University Hospital Gregorio Marañón, Colorectal Surgery Unit, Madrid, Spain