共 9 条
- [1] DRISCOLL PA, 1987, ARCH EMERG MED, V4, P77
- [3] GAGE LS, 1994, AM URBAN HLTH SAFETY, P32
- [4] GAVELER JS, 1980, J NATIONAL MED ASS, V72, P33
- [5] KELLY LJ, 1993, CANADIAN FAMILY JUN, P1345
- [6] MCCAIG LF, 1994, ADV DATA VITAL HLTH, V245
- [7] RICH S, 1994, WASHINGTON POST 0303, pA7
- [8] SCHRODER SA, 1979, W J MED JAN, P67
- [9] *US GEN ACC OFF, 1993, GAO HRD934