共 23 条
[1]
Adelman R D, 1987, Gerontol Geriatr Educ, V7, P141
[3]
*AM ASS MED COLL, 1987, 1987 1988 CURR DIR
[4]
*AM ASS RET PERS, 1988, AG AM TRENDS PROJ
[5]
*ASS AM MED COLL, 1984, PHYS 21ST CENT GPEP
[7]
COHEN J, 1975, APPLIED MULTIPLE REG, P379
[9]
DIXON WJ, 1985, BMDP STATISTICAL SOF
[10]
HOLTZMAN JM, 1979, J FAM PRACTICE, V9, P667