Authors: R M Hu; Z G Han; H D Song; Y D Peng; Q H Huang; S X Ren; Y J Gu; C H Huang; Y B Li; C L Jiang; G Fu; Q H Zhang; B W Gu; M Dai; Y F Mao; G F Gao; R Rong; M Ye; J Zhou; S H Xu; J Gu; J X Shi; W R Jin; C K Zhang; T M Wu; G Y Huang; Z Chen; M D Chen; J L Chen Journal: Proc Natl Acad Sci U S A Date: 2000-08-15 Impact factor: 11.205