Name of the study: Study on phenotype, genotype and outcome of Beta-ketothiolase deficiency in Vietnam Code: 62720135; Specialist: Pediatrics Student: Nguyễn Ngọc Khánh Supervisor: PGS TS Nguyễn Thị Hoàn Training Place: Hanoi Medical University New informations of the study: - It is the first and comprehensive study on Beta-ketothiolase deficiency in Vietnam with the largest patient accounted of 40% total patient number worldwide.