共 5 条
[1]
CHAKRAVE.P, 1973, B WORLD HEALTH ORGAN, V49, P327
[2]
CHAKRAVERTY P, 1971, B WORLD HEALTH ORGAN, V45, P755
[3]
CHAKRAVERTY P, 1972, B WORLD HEALTH ORGAN, V46, P473
[4]
ANTIGENIC VARIANTS OF INFLUENZA B VIRUS
[J].
BMJ-BRITISH MEDICAL JOURNAL,
1973, 4 (5885)
:127-131
[5]
SCHILD GC, 1975, B WORLD HEALTH ORGAN, V52, P43