共 5 条
[1]
DIXON JMS, 1974, LANCET, V2, P474
[3]
HANSMAN D, 1967, LANCET, V2, P264
[4]
PNEUMOCOCCI WITH INCREASED RESISTANCE TO PENICILLIN
[J].
BMJ-BRITISH MEDICAL JOURNAL,
1973, 3 (5876)
:405-405