共 24 条
[1]
ASTRACHAN J, 1988, ARCH INTERN MED, V149, P1509
[2]
BAKER LC, 1988, HLTH AFFAIRS S, P258
[3]
Barr J K, 1983, J Community Health, V8, P160, DOI 10.1007/BF01666451
[7]
Cashman S B, 1990, Health Care Manage Rev, V15, P47
[8]
Fisher N B, 1993, Health Care Manage Rev, V18, P51
[9]
FREEBORN D, 1985, GROUP HLTH J SPR, P3