@article{9b20ae2820024c019543aa054abe07ec,
title = "Interferon beta - 1b in the treatment of secondary - progressive ms: impact on quality of life",
author = "JA Freeman and AJ Thompson and R Fitzpatrick and M Hutchinson and K Beckmann and F Dahlke and L Kappos and C Polman and C Pozzilli and European, \{Study Group on Interferon-beta 1b in secondary progressive MS\}",
year = "2001",
month = nov,
day = "1",
language = "English",
volume = "0",
pages = "1870--1875",
journal = "Neurology",
issn = "0028-3878",
publisher = "Lippincott Williams and Wilkins",
number = "0",
}