Age at menarche and risk of multiple sclerosis (MS): a systematic review and meta-analysis.
Amirreza AzimiSara HanaeiMohammad Ali SahraianMehdi MohammadifarSreeram V RamagopalanMahsa GhajarzadehPublished in: BMC neurology (2019)
The result of this systematic review showed that the risk of MS decreases by increasing age at menarche.