共 17 条
[1]
ANDERSON R I, 1962, Med Ann Dist Columbia, V31, P211
[6]
CHANG Wen-Pin., 1962, Ethiopian Medical Journal, V1, P9
[7]
JACHOWSKI L, 1961, B WORLD HEALTH ORGAN, V25, P675
[9]
KAGAN IG, 1961, B WORLD HEALTH ORGAN, V25, P611