Guiding principles of clinical research on mild cognitive impairment (protocol)
Jin-zhou TIAN;Jing SHI;Xin-qing ZHANG;Qi BI;Xin MA;Zhi-liang WANG;Xiao-bin LI;Shu-li SHENG;Lin LI;Zhen-yun WU;Li-yan FANG;Xiao-dong ZHAO;Ying-chun MIAO;Peng-wen WANG;Ying REN;Jun-xiang YIN;Yong-yan WAN;Beijing United Study Group on MCI of the Capital Foundation of Medical Developments