共 20 条
[2]
BECK WC, 1974, GUTHRIE CLIN B, V43, P170
[3]
BLISS CI, 1977, STATISTICS BIOL, V2, P134
[4]
BUNTAIN WL, 1977, J LOUISIANA ST MED S, V129, P5
[6]
CULLUMBINE H., 1949, Ceylon Journal of Medical Science, V6, P88
[7]
DHURANDHAR R W, 1962, J Postgrad Med, V8, P122
[8]
EOFF MJF, 1974, NURS RES, V23, P457
[9]
HOWELL T H, 1972, Age and Ageing, V1, P250, DOI 10.1093/ageing/1.4.250