BibTex format
@article{Scalfari:2011:10.1212/WNL.0b013e318230a17d,
author = {Scalfari, A and Neuhaus, A and Daumer, M and Ebers, GC and Muraro, PA},
doi = {10.1212/WNL.0b013e318230a17d},
journal = {NEUROLOGY},
pages = {1246--1252},
title = {Age and disability accumulation in multiple sclerosis},
url = {http://dx.doi.org/10.1212/WNL.0b013e318230a17d},
volume = {77},
year = {2011}
}