共 23 条
- [1] *AM F BLIND, 1989, PREV EST BLINDN LOW
- [2] *AM PRINT HOUS BLI, 1989, 121 ANN REP
- [3] CAHILL J, 1976, UNPUB SUMMARY CRITIQ
- [4] *DEC RES CORP, 1988, PATT SPEC ED SERV DE
- [5] *HARRIS LOUIS ASS, 1986, ICD SURV DIS AM BRIN
- [6] HU T, 1981, UNPUB EC COSTS VISUA
- [7] JAVITT JC, 1991, OPHTHALMOLOGY, V98, P1565
- [8] MARS L, 1991, FEB WORTH CTR EYE CA
- [9] *NAT COUNC HAND, 1986, TOW IND
- [10] *NAT SOC PREV BLIN, 1980, VIS PROBL US