Human complement components C4 and Bf polymorphisms and their complotypes in Guangdong Chinese Han population
YANG Li-ping1, WEN Xiu-qing2, GUAN Yan-bing3, XU Juan4, JIANG Xiao-dan5, ZHAO Xiu-zhu5
Journal of Southern Medical University . 2004, (09): 1026 -1028 .