CJCP     2008 10 (6):  754-756    ISSN: 1008-8830  CN: 43-1301/R Misdiagnosis of 9 cases of congenital dermal sinus LIU Gang, CHEN He-Ying, LI Shao-Ying, CHENG Hua, ZENG Jin-Jin Department of Internal Medicine, Beijing Children's Hospital Affiliated to Capital University of Medical Sciences, Beijing 100045, China Received: null  Revised: null  Online: null Supporting info