共 32 条
- [21] *NAT CTR HLTH STAT, 1987, DHHS PUBL
- [22] NATARAJAN N, 1985, CANCER-AM CANCER SOC, V56, P1704, DOI 10.1002/1097-0142(19851001)56:7<1704::AID-CNCR2820560740>3.0.CO
- [23] 2-L
- [24] NORTON CH, 1989, HEALTH SERV RES, V23, P725
- [25] *OFF TECHN ASS, 1990, HLTH CAR RUR AM
- [26] REED WL, 1990, BLACK AGED UNDERSTAN, P183
- [27] ROBINSON E, 1986, ISRAEL J MED SCI, V22, P333
- [28] *US BUR CENS, 1990, CIT COUNT DAT BOOK 1
- [29] VERNON SW, 1985, CANCER-AM CANCER SOC, V55, P1563, DOI 10.1002/1097-0142(19850401)55:7<1563::AID-CNCR2820550726>3.0.CO
- [30] 2-1