共 8 条
[1]
BJORKMAN A, 1989, LANCET, V2, P865
[3]
GILLES HG, 1987, J INFECTION, V18, P11
[4]
MAEGRAITH BG, 1963, LANCET, V1, P401
[6]
STUIVER PC, 1989, LANCET, V2, P282
[8]
1983, B WORLD HEALTH ORGAN, V61, P169