共 8 条
- [1] A SURVEY OF NASAL STREPTOCOCCUS-PNEUMONIAE IN CHILDREN [J]. JOURNAL OF HYGIENE, 1982, 88 (03): : 425 - 431
- [3] HANSMAN D, 1967, LANCET, V2, P264
- [7] ANTIBIOTIC-RESISTANT PNEUMOCOCCI IN HOSPITALIZED CHILDREN [J]. JOURNAL OF HYGIENE, 1984, 93 (01): : 9 - 16
- [8] 1981, MORBIDITY MORTALITY, V30, P197