Lactic acidosis: SLC25A4 (Bakker et al., 1993; Palmieri et al., 2005; Thompson et al., 2016); SLC25A26 OMIM 616794 (Kishita et al., 2015); SLC25A42 (Almannai et al., 2018). Here, SLC25A4 is linked to lactic acidosis.