AlonsoAHernanMA.Temporal trends in the incidence of multiple sclerosis: A systematic review. Neurology2008; 71: 129–135.
2.
CoccoESarduCLaiM. Anticipation of age at onset in multiple sclerosis: A Sardinian cohort study. Neurology2004; 62: 1794–1798.
3.
Alonso-MagdalenaLRomero-PinelLMoralE. Anticipation of age at onset in multiple sclerosis: Methodologic pitfalls. Acta Neurol Scand2010; 121: 426–428.
4.
WesterlindHStawiarzLFinkKHillertJ.A significant decrease in diagnosis of primary progressive multiple sclerosis: A cohort study. Mult Scler2016; 22: 1071–1079.
5.
CutterGRZimmermanJSalterAR. Causes of death among persons with multiple sclerosis. Mult Scler Relat Disord2015; 4(5): 484–490.
6.
TutuncuMTangJZeidNAOnset of progressive phase is an age-dependent clinical milestone in multiple sclerosis. Mult Scler2013; 19: 188–198.
7.
CottrellDAKremenchutzkyMRiceGPThe natural history of multiple sclerosis: a geographically based study. 5. The clinical features and natural history of primary progressive multiple sclerosis. Brain1999; 122: 625–639.
