Yan Yang, Erwin K. Chung, Yee Ling Wu, Stephanie L. Savelli, Haikady N. Nagaraja, Bi Zhou, Maddie Hebert, Karla N. Jones, Yaoling Shu, Kathryn Kitzmiller, Carol A. Blanchong, Kim L. McBride, Gloria C. Higgins, Robert M. Rennebohm, Robert R. Rice, Kevin V. Hackshaw, Robert A.S. Roubey, Jennifer M. Grossman, Betty P. Tsao, Daniel J. Birmingham, Brad H. Rovin, Lee A. Hebert, C. Yung Yu,
Gene Copy-Number Variation and Associated Polymorphisms of Complement Component C4 in Human Systemic Lupus Erythematosus (SLE): Low Copy Number Is a Risk Factor for and High Copy Number Is a Protective Factor against SLE Susceptibility in European Americans American Journal of Human Genetics. ,vol. 80, pp. 1037- 1054 ,(2007) ,
10.1086/518257