CHST14 and Ehlers-Danlos syndrome: The CRISPR/Cas9-engineered Chst14-mutant mouse is a useful model for musculocontractural Ehlers-Danlos syndrome caused by mutations in CHST14 (Dündar et al., 2009; Malfait et al., 2010; Miyake et al., 2010; Voermans et al., 2012; Kosho et al., 2019; Malfait et al., 2020).