Bi-allelic PRMT9 loss-of-function variants cause a syndromic form of intellectual disability. - Kröll-Hermi A; Stoetzel C; Etard C; Halabelian L; Schaefer E; Scheidecker S; Kahrizi K; Payman J; Geoffroy V; Prasad M; Obringer C; Ruch L; et al. (American journal of human genetics, 2025)