title: Decreased level of 5-methyltetrahydrofolate: a potential biomarker for pre-symptomatic amyotrophic lateral sclerosis.
authors.affiliation: Insitute of Neurology, Ruijin Hospital, Jiaotong University School of Medicine, Shanghai, China.
authors.forename: X
authors.initials: X
authors.lastname: Zhang
authors.forename: S
authors.initials: S
authors.lastname: Chen
authors.forename: L
authors.initials: L
authors.lastname: Li
authors.forename: Q
authors.initials: Q
authors.lastname: Wang
authors.forename: W
authors.initials: W
authors.lastname: Le