Protocol for a prospective multicentre cohort study to address the question whether diabetes and its management is still a risk factor in fast-track joint arthroplasty oleh Sten Madsbad, Søren Overgaard, Torben Bæk Hansen, Claus Varnum, Henrik Kehlet, Martin Lindberg-Larsen, Manuel Josef Bieder, Kirill Gromov, Thomas Jakobsen, Luma Mahmoud Issa, Mikkel Rathsach Andersen, Christoffer Calov Jørgensen