RT Journal Article SR Electronic T1 Seasonality of tweets related to multiple sclerosis JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 1030 OP 1031 DO 10.1136/jnnp-2016-313941 VO 87 IS 9 A1 Alex Simpson A1 Marta Pereira A1 Selin Cooper A1 Sreeram V Ramagopalan YR 2016 UL http://jnnp.bmj.com/content/87/9/1030.abstract AB