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Broering JM, Paciorek A, Carroll PR, Wilson LS, Litwin MS, Miaskowski C.Broering JM, et al. Among authors: litwin ms.Qual Life Res. 2014 Mar;23(2):495-508. doi: 10.1007/s11136-013-0493-7. Epub 2013 Aug 13.Qual Life Res. 2014.PMID: 23943258Clinical Trial.