TCM;
College;
of;
Nanfang;
Medical;
University,;
Guangzhou;
510515;
Acupuncture;
and;
Massage;
College;
of;
Guangzhou;
TCM;
University;
Department;
of;
Nuclear;
Medicine,;
Guangdong;
Provincial;
People';
s;
Hospital;
DU20; DU26; HT7; 血管性痴呆; 脑功能成像; 临床研究;