CJCP     2013 15 (6):  409-411    ISSN: 1008-8830  CN: 43-1301/R A limited understanding of hazard of influenza A virus subtype H7N9 in children ZHU Yi-Min Hunan Children’s Hospital, Changsha 410007, China. cszhuyimin@163.com Received: null  Revised: null  Online: null Supporting info