Damen, Jurgen
van Rijn, Rogier M.
Emans, Pieter J.
Hilberdink, Willem K. H. A.
Wesseling, Janet
Oei, Edwin H. G.
Bierma-Zeinstra, Sita M. A.
Funding for this research was provided by:
Dutch Arthritis Association (o)
Article History
Received: 24 June 2018
Accepted: 3 December 2018
First Online: 5 January 2019
Ethics approval and consent to participate
: No ethics approval was needed as no interventions were done and all participants received usual care.
: All participants provided signed informed consent before entering the study, declaring they approved any publication.
: All authors state that they have no actual or potential conflict of interest including any financial, personal or other relationships with other people or organizations within three years of beginning the submitted work that could inappropriately influence, or be perceived to influence, their work.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.