Figure 4From: Geomagnetic disturbances may be environmental risk factor for multiple sclerosis: an ecological study of 111 locations in 24 countries MS Prevalence estimates by AMAG60, geographical latitude, geomagnetic latitude and AGARPH60. AMAG60: Angular distance to geomagnetic 60° latitude; AGRAPH60: Angular distance to geographic 60° latitude; N. America: North America; North hemis: North hemisphere; Both hemis: Both hemispheres. †Australasia comprises Australia and New Zealand. Dotted lines indicate line of regression.Back to article page