International development of the patient-reported outcome indices for multiple sclerosis (PRIMUS).
McKenna SP, Doward LC, Twiss J, Hagell P, Oprandi NC, Fisk J, Grand'Maison F, Bhan V, Arbizu T, Brassat D, Kohlmann T, Meads DM, Eckert BJ.
McKenna SP, et al.
Value Health. 2010 Dec;13(8):946-51. doi: 10.1111/j.1524-4733.2010.00767.x.
Value Health. 2010.
PMID: 20667058
Free article.