Erratum to: Qual Life Res DOI 10.1007/s11136-010-9844-9
Please note that the following acknowledgements should be added to the Acknowledgements section in the original publication:
This work was funded in part by a NARCOMS visiting Scientist Fellowship to Dr. Schwartz, which was supported through a Foundation of the Consortium of Multiple Sclerosis Centers grant from EMD Serono, Inc. NARCOMS is supported by the Consortium of Multiple Sclerosis Centers and its Foundation.
Open Access This is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License (
https://creativecommons.org/licenses/by-nc/2.0
), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.