Ethylmalonic Encephalopathy: Clinical and Biochemical Observations - Zafeiriou, D I; Augoustides-Savvopoulou, P; Haas, D; Smet, J; Triantafyllou, P; Vargiami, E; Tamiolaki, M; Gombakis, N; van Coster, R; Sewell, A C; Vianey-Saban, C; Gregersen, N (Neuropediatrics, 2007)