共 95 条
[3]
[Anonymous], 2000, MMWR Recomm Rep, V49, P1
[4]
ARMSTRONG CHARLES, 1939, PUBL HEALTH REPTS, V54, P673, DOI 10.2307/4582864
[5]
Barrera Oro J G, 1991, Bull Pan Am Health Organ, V25, P118
[10]
BIGGAR RJ, 1975, LANCET, V1, P856