CJCP     2013 15 (4):  313-315    ISSN: 1008-8830  CN: 43-1301/R Combined methylmalonic aciduria and homocysteinemia with hydrocephalus as an early presentation: a case report LIU Li-Li, HOU Xin-Lin, ZHOU Cong-Le, YANG Yan-Ling Department of Pediatrics, Peking University First Hospital, Beijing100034, China. liszm@sina.com Received: null  Revised: null  Online: null Supporting info