1Department of Rheumatology, Vendsyssel Teaching Hospital, Denmark, and Center for Clinical Science, Aalborg University, Denmark
2Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
*Corresponding Author:
Allan Stensballe, Department of Health Science and Technology, Aalborg University, Fredrik Bajers Vej 7E, 9220 Aalborg, Denmark, Tel: +45 6160 8786