PT - JOURNAL ARTICLE AU - Mike P Wattjes AU - Clemens Warnke TI - Guidelines on PML risk stratification and diagnosis in patients with MS treated with natalizumab: so far so good? AID - 10.1136/jnnp-2015-311386 DP - 2016 Feb 01 TA - Journal of Neurology, Neurosurgery & Psychiatry PG - 115--115 VI - 87 IP - 2 4099 - http://jnnp.bmj.com/content/87/2/115.short 4100 - http://jnnp.bmj.com/content/87/2/115.full SO - J Neurol Neurosurg Psychiatry2016 Feb 01; 87