%A He Yu, Yu-tong Fei, Jian-ping Liu %T Clinical trial registration--looking back and moving ahead %0 Journal Article %D 2007 %J Journal of Integrative Medicine %R %P 605-605 %V 5 %N 5 %U {http://www.jcimjournal.com/CN/abstract/article_1876.shtml} %8 2007-09-20 %X