[1] Municipal Hjorring, Dept Physiotherapy & Occupat Therapy, Bistrupvej 3, DK-9800 Hjorring, Denmark
[2] Municipal Tonder, Ctr Rehabil, Carstensgade 6-10, DK-6270 Toender, Denmark
[3] North Denmark Reg Hosp, Ctr Clin Res, Bispensgade 37, DK-9800 Hjorring, Denmark
[4] North Denmark Reg Hosp, Dept Neuro Gastroenterol Res, Bispensgade 37, DK-9800 Hjorring, Denmark
[5] Aalborg Univ Hosp, Dept Acute Med & Trauma Care, DK-9000 Aalborg, Denmark
[6] Aalborg Univ, Dept Clin Med, DK-9000 Aalborg, Denmark