@article{27742cd180e740fcbd76832e1e640078,
title = "Primary progressive multiple sclerosis diagnostic criteria: a reappraisal",
author = "X. Montalban and J. Sastre-Garriga and M. Filippi and Z. Khaleeli and N. Tellez and M.M. Vellinga and C. Tur and B. Brochet and F. Barkhof and M. Rovaris and Miller, \{D. H.\} and C.H. Polman and A. Rovira and A. Thompson",
year = "2009",
doi = "10.1177/1352458509348422",
language = "Undefined/Unknown",
volume = "15",
pages = "1459--1465",
journal = "Multiple Sclerosis",
issn = "1352-4585",
publisher = "SAGE Publications Ltd",
number = "12",
}