onsets, multiple sclerosis (MS) onsets and MS exacerbations (MSE), a meta-analysis was
performed, using established methods and pooling weighted information obtained from nine
reports on MON, six reports on MS onsets and nine reports on MSE, which fulfilled specific
criteria for report quality and data homogeneity. The results suggested that MON, MS onsets
and MSE in the Northern hemisphere present a similar pattern with highest frequencies in …