[1] Ajou Univ, Sch Med, Suwon 443749, South Korea
[2] Ajou Univ Hosp, Memory Impairment Ctr, Suwon, South Korea
[3] Ajou Univ, Sch Med, Dept Psychiat, Ajou Inst Aging, Suwon 441749, South Korea
[4] Seoul Med Ctr, Dept Family Med, Seoul, South Korea
[5] Yonsei Univ, Coll Med, Dept Psychiat, Inst Behav Sci Med, Seoul, South Korea
[6] Yeungnam Univ, Dept Food & Nutr, Gyongsan, South Korea
[7] Yonsei Univ, Yonsei Univ Res Inst Sci Aging, Seoul 120749, South Korea
[8] Yonsei Univ, Dept Med, Grad Sch, Seoul 120749, South Korea
[9] Pochon CHA Univ, Coll Med, Dept Psychiat, Songnam, South Korea