Keyphrases
Multiple Sclerosis
100%
Prevalence Rate
100%
Latitudinal Gradient
100%
North-south Gradient
100%
Northern Hemisphere
100%
Incidence Rate
75%
Europe
75%
Diagnostic Accuracy
50%
North America
50%
Environmental Factors
25%
Meta-analysis
25%
Literature Search
25%
Error Sources
25%
Epidemiological Study
25%
Sex Ratio
25%
Uneven Distribution
25%
Geographical Variation
25%
Temporal Variation
25%
Prevalence Study
25%
Incidence Estimates
25%
Five Decades
25%
Incidence-based
25%
Latitudinal Distribution
25%
View-specific
25%
Temperate Zone
25%
Southern Hemisphere
25%
Traditional View
25%
Earth and Planetary Sciences
Northern Hemisphere
100%
Latitudinal Gradient
100%
Europe
75%
North America
50%
Temporal Variation
25%
Geographical Variation
25%
Leveling
25%
Temperate Zone
25%
Southern Hemisphere
25%
Immunology and Microbiology
Prevalence
100%
Multiple Sclerosis
100%
Hemisphere
100%
Sex Ratio
16%
Mathematics
Prevalence Rate
100%
Incidence Rate
50%
Periodic Time
25%
Meta-Analysis
25%
Neuroscience
Multiple Sclerosis
100%
Meta-Analysis
100%