共 28 条
- [11] HECKMAN JJ, 1976, ANN ECON SOC MEAS, V5, P475
- [12] Hurd M, 1979, J EC, V11, P247, DOI DOI 10.1016/0304-4076(79)90039-3
- [15] MADDALA GS, 1985, ADV HLTH EC HLTH SER, V6
- [16] Maddala GS., 1983, LTD DEPENDENT QUALIT, DOI [10.1017/CBO9780511810176, DOI 10.1017/CBO9780511810176]
- [18] Manning W. G., 1981, HLTH EC HLTH EC