CGI	clinical global impression
CSF	cerebrospinal fluid
GMFCS	gross motor functions classification system
LC-FAOD	long-chain fatty acid oxidation disorders
LLN	lower limit of normal
MACS	manual ability classification system
MAS	malate-aspartate shuttle
MCTs	medium-chain triglycerides
MDH2	mitochondrial malate dehydrogenase
MDH2D	MDH2 deficiency
MRI	magnetic resonance imaging
OXPHOS	oxidative phosphorylation
PEG tube	percutaneous endoscopic gastrostomy tube
RC	respiratory chain
TCA cycle	tricarboxylic acid cycle
trio-WES	trio-whole-exome sequencing
ULN	upper limit of normal