Acknowledgements
We would like to thank Monica Broeren and Jenny Östlund, research nurses at the Department of Vascular Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden. We would like to thank Peta Cook, Ingrid Eliasson, Madeleine Ivarsson, Jenny Snickars and Susanna Wittboldt, physical therapists at the Department of Physiotherapy, Sahlgrenska University Hospital, Gothenburg, Sweden and Karin Olsson and Frida Lindström, physical therapists at the Karlstad Central Hospital, Karlstad, Sweden.