Polymorphisms in Th1/Th2 cytokine Genes, hormone replacement therapy, and risk of non-Hodgkin lymphoma oleh Gongjian eZhu, Gongjian eZhu, Dongsheng ePan, Dongsheng ePan, Tongzhang eZheng, Qing eLan, Xuezhong eChen, Xuezhong eChen, Yingtai eChen, Yingtai eChen, Christopher eKim, Xiaofeng eBi, Xiaofeng eBi, Theodore eHolford, Peter eBoyle, Brian eLeaderer, Stephen eChanock, Nathaniel eRothman, Yawei eZhang