共 21 条
[13]
1979, MMWR, V28, P469
[14]
1979, MMWR, V28, P463
[15]
1982, MED LETT DRUGS THER, V24, P5
[16]
1980, LANCET, V2, P186
[17]
1981, MMWR, V30, P521
[18]
1979, MMWR, V28, P385
[19]
1980, MMWR, V29, P477
[20]
1974, AM REV RESPIR DIS, V110, P371