CJCP     2011 13 (9):  755-756    ISSN: 1008-8830  CN: 43-1301/R Etiology of childhood erythema nodosum in 23 cases ZHOU Wei, YIN Lei, ZHOU Zheng-Yu Shanghai Children’s Medical Center, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China. Received: null  Revised: null  Online: null Supporting info