Figure 1. Japanese regions investigated in the survey.
Japan is divided into 3 areas by the 37th parallel north and the 135th meridian east. (A) ADEM, (B) MS. ADEM = acute disseminated encephalomyelitis; MS = multiple sclerosis.
Japan is divided into 3 areas by the 37th parallel north and the 135th meridian east. (A) ADEM, (B) MS. ADEM = acute disseminated encephalomyelitis; MS = multiple sclerosis.