4Suen LJ, Morris DL. Depression and gender differences-Focxts on Taiwan Residents American older adults[J]. J Gerontol Nurs., 2006, 32 ( 4 ) : 28-36.
5Okabayashi H, LiangJ, Krause N, et al. Mental health among older adults in Japan: do sources of social support and negative interaction make a difference[J]. Soc Sci Med., 2004, 59 ( 11 ) : 2259-2270.
