Wuxue Zhang Yong Zhang Hui Zheng Chen Zhang Wei Xiong John G. Olyarchuk Michael Walker Weifeng Xu Min Zhao Shuqi Zhao Zhuan Zhou Liping Wei 737-741 2007 35 Nucleic Acids Research Database-Issue http://dx.doi.org/10.1093/nar/gkl876 db/journals/nar/nar35.html#ZhangZZZXOWXZZZW07