External validation and improvement of an algorithm that identifies multiple sclerosis relapses in the French national healthcare claims database.

Carcaillon-Bentata L, Abouelfath A, Lignot-Maleyran S, Lassalle R, Jové J, Blin P, Berger E, Bourre B, Camdessanche J P, Casez O, et al.

Mult Scler Relat Disord. 2026 Apr 24; 111:107209. PMID: 42134166. Abstract