共 10 条
[5]
1988, MMWR-MORBID MORTAL W, V37, P377
[6]
1992, MMWR-MORBID MORTAL W, V41, P228
[7]
1993, MMWR-MORBID MORTAL W, V42, P969
[8]
1987, MMWR-MORBID M S2S, V36, pS1
[9]
1988, MMWR-MORBID MORTAL W, V37, P387
[10]
1992, MMWR-MORBID MORTAL W, V41, P575