BibTex format
@article{Nicholas:2019:10.1177/1352458518794063,
author = {Nicholas, RS and Han, E and Raffel, J and Chataway, J and Friede, T},
doi = {10.1177/1352458518794063},
journal = {MULTIPLE SCLEROSIS JOURNAL},
pages = {1462--1471},
title = {Over three decades study populations in progressive multiple sclerosis have become older and more disabled, but have lower on-trial progression rates: A systematic review and meta-analysis of 43 randomised placebo-controlled trials},
url = {http://dx.doi.org/10.1177/1352458518794063},
volume = {25},
year = {2019}
}