CJCP     2004 6 (2):  128-130    ISSN: 1008-8830  CN: 43-1301/R Application of urinase pretreatment-gas chromatography-mass spectrometry in the diagnosis and treatment of multiple carboxylase deficiency SONG Yuan-Zong, FANG Su-Zhen, FENG Zhi-Chun, WANG Zi-Neng Received: null  Revised: null  Online: null Supporting info