共 50 条
- [3] POLIOMYELITIS IN DEVELOPING-COUNTRIES [J]. BMJ-BRITISH MEDICAL JOURNAL, 1992, 305 (6851): : 475 - 476
- [4] POLIOMYELITIS IN DEVELOPING-COUNTRIES [J]. BRITISH MEDICAL JOURNAL, 1978, 2 (6148): : 1368 - 1368
- [6] POLIOMYELITIS IN TAIWAN - LESSONS FOR DEVELOPING-COUNTRIES [J]. LANCET, 1985, 1 (8433): : 872 - 873