ARTICLE Impaired catabolism of free oligosaccharides due to MAN2C1 variants causes a neurodevelopmental disorder Authors Nuno Maia, Sven Potelle, Hamide Yildirim, ..., Paula Jorge, Anna C. Jansen, Franc ¸ois Foulquier Correspondence francois.foulquier@univ-lille.fr (F.F.), anna.jansen@vub.be (A.C.J.) Maia et al., 2022, The American Journal of Human Genetics 109, 345–360 February 3, 2022 Ó 2022 The Authors. https://doi.org/10.1016/j.ajhg.2021.12.010 ll