1. Organic solvents and MS susceptibility: Interaction with MS risk HLA genes 2. AAN 2018 Controversies in Neurology plenary: Andrea Leigh Haller and David Perez discuss primary caregivers for functional disorder patientsDr. Stacey Clardy talks with Dr. Anna Hedström about her paper on exposure to organic solvents and the associated risk of developing multiple sclerosis, followed by a discussion with Dr. Alberto Espay, Dr. Andrea Leigh Haller, and Dr. David Perez on who should be the primary caregivers for functional disorder patients. The second interview was originally recorded at the AAN Annual Meeting in Los Angeles.DISCLOSURES: Dr. Clardy has received research support from Western Institute for Biomedical Research (WIBR). Drs. Hedström, Leigh Haller, and Perez report no disclosures. Dr. Espay serves as Associate Editor for the Journal of Clinical Movement Disorders; serves as an editorial board member of Parkinsonism and Related Disorders and The European Neurological Journal; serves on the scientific advisory board for Solvay Pharmaceuticals, Inc. (now Abbvie), Chelsea Therapeutics International, Ltd., Teva Pharmaceutical Industries Ltd., Impax, Merz Pharmaceuticals, Inc., Pfizer Inc, Solstice Neurosciences, Eli Lilly and Company, ACADIA Pharmaceuticals, Inc. and USWorldMeds; is a consultant for Chelsea Therapeutics International, Ltd., Solvay Pharmaceuticals, Inc. (now Abbvie), ACADIA Pharmaceuticals, Inc., Cynapsus and Lundbeck, Inc; receives royalties for publications of books from Lippincott, Williams & Wilkins and Cambridge University Press; serves on the speakers' bureau of UCB, Teva Pharmaceutical Industries Ltd., American Academy of Neurology and Movement Disorders Society; and receives research support from the CleveMed/Great Lake Neurotechnilogies, Michael J. Fox Foundation, and the NIH.