共 21 条
[1]
ASHLEY M J, 1977, Age and Ageing, V6, P211, DOI 10.1093/ageing/6.4.211
[2]
Baker S P, 1985, Clin Geriatr Med, V1, P501
[4]
DIXON WJ, 1988, BMDP STATISTICAL SOF
[5]
Downton J H, 1991, Aging (Milano), V3, P219
[6]
GRANEK E, 1987, J AM GERIATR SOC, V35, P501
[7]
GRYFE C I, 1977, Age and Ageing, V6, P201, DOI 10.1093/ageing/6.4.201
[8]
HEIKKINEN J, 1986, THESIS ACTA U TAMPER