共 26 条
[1]
Aiken L H, 1982, Health Aff (Millwood), V1, P30, DOI 10.1377/hlthaff.1.4.30
[5]
ASTIN AW, 1986, AM FRESHMAN 20 YEAR
[6]
CURRAN CR, 1987, AM J NURS, V87, P444
[7]
FEINBERG L, 1986, WASHINGTON POST 0811
[8]
Feldstein P., 1979, HLTH CARE EC