[1] Gansu Univ Chinese Med, Clin Med Coll 1, Lanzhou 730000, Peoples R China
[2] Gansu Univ Chinese Med, Affiliated Hosp, Dept Geriatr, Lanzhou 730000, Peoples R China
[3] Mudanjiang Med Univ, Affiliated Hongqi Hosp, Dept Geriatr, Mudanjiang 157011, Peoples R China
[4] Res Ctr Tradit Chinese Med, Lanzhou 730000, Gansu, Peoples R China
[5] Gansu Univ Chinese Med, Key Lab Gansu Prov Prescript Min, Innovat Translat Lab, Lanzhou 730000, Peoples R China
[6] Gansu Univ Chinese Med, Gansu Prov Tradit Chinese Med New Prod Creat Engn, Lanzhou 730000, Peoples R China