@article{23769, author = {Dwyer T and Taylor B and van d and Ponsonby A and Tao C and Simpson S and Blizzard L and Lucas R and Broadley S and Dear K and Kilpatrick T and Williams D and Lechner-Scott J and Shaw C and Chapman C and Coulthard A and Pender M and Valery P}, title = {Onset symptoms, Tobacco smoking, and progressive-onset phenotype are associated with a delayed onset of multiple sclerosis, and marijuana use with an earlier onset}, year = {2018}, journal = {Frontiers in Neurology}, volume = {9}, doi = {10.3389/fneur.2018.00418}, language = {eng}, }