共 62 条
- [1] Acton Jan, 1973, R950RC RAND CORP
- [2] ACTON JP, 1976, R1697NHLI RAND CORP
- [3] ALTMAN I, 1969, METHODOLOGY EVALUATI
- [4] AVERY AD, 1976, R20212HEW RAND CORP
- [5] Belloc N B, 1973, Prev Med, V2, P67, DOI 10.1016/0091-7435(73)90009-1
- [6] Belloc N B, 1972, Prev Med, V1, P409, DOI 10.1016/0091-7435(72)90014-X
- [10] BROOK RH, 1976, DUKE LAW J, V1975, P1197