[1] Hanoi Med Univ, Dept Geriatr, Hanoi 100000, Vietnam
[2] Natl Geriatr Hosp, Sci Res Dept, Hanoi 100000, Vietnam
[3] Dinh Tien Hoang Inst Med, Hanoi 100000, Vietnam
[4] Dong Anh Gen Hosp, Outpatient Dept, Hanoi 100000, Vietnam
[5] Karolinska Inst, Dept Neurobiol Care Sci & Soc, S-14183 Huddinge, Sweden
[6] Acad Primary Hlth Care Ctr, S-11365 Stockholm, Sweden
[7] Karolinska Inst, Dept Physiol & Pharmacol, S-17165 Stockholm, Sweden
[8] Karolinska Inst, Dept Learning Informat Management & Eth, S-17165 Stockholm, Sweden