CJCP     2016 18 (10):  1013-1018    ISSN: 1008-8830  CN: 43-1301/R Gene mutation analysis and prenatal diagnosis of four pedigrees with methymalonic aciduria PAN Yu-Chun, LIU Yang, WU Wei-Qing, XIE Jian-Sheng Shenzhen Maternal and Child Health Care Hospital, Southern Medical University, Shenzhen, Guangdong 518000, China Received: 2016-05-11  Revised: 2016-06-22  Online: null Supporting info null