1. Gentofte-Herlev Hospital, Copenhagen, Denmark.
2. The Lundbeck Centre for fast-track Hip
and Knee Arthroplasty, Copenhagen, Denmark.
3. Philips Healthcare, 920
SW Emkay Drive, Suite 100, Bend, OR
97702, USA.
4. Gentofte-Herlev Hospital, University of
Copenhagen, Kildegårdsvej 28, 2900
Hellerup, Denmark.
5. Vejle Hospital, Beriderbakken
4, 7100 Vejle, Denmark.