1Han LS, Ye J,Qiu W J, et al. Selective screening for inborn errors of metabolism on clinical patients using tandem mass spectrometry in China: a four-year report [ J ]. J Inherit Metab Dis ,2007,30(4) :507.
4Lemer-Ellis JP,Anastasio N,Liu J,et al. Spectrum of mutations in MMACHC, allelie expression, and evidence for genotype- phenotype correlations [ J ]. Hum Mutat ,2009,30 (7) : 1072.
5Chang JT, Chen YY, Liu TT, et al. Combined methylmalon ic aciduria and homoeystinuria cblC type of a Taiwaneseinfant with c. 609G > A and C. 567dupT mutations in the MMACHC gene[ J]. Pediatr Neonatol,2011,52(4) :223.
6Martinelli D, Deodato F, Dionisi-Vici C. Cobalamin C de- feet : natural history, pathophysiology, and treatment[ J ]. J Inherit Metab Dis,2011,34-(1) :127.