共 30 条
[1]
*ADV COMM IMM PRAC, 1996, MMWR-MORBID MORTAL W, V45, P1
[3]
ATKINSON W, 1995, EPIDEMIOLOGY PREVENT, P42
[4]
*CDCP, 1995, MMWR-MORBID MORTAL W, V44, P323
[5]
*CDCP, 1996, MMWR-MORBID MORTAL W, V45, P509
[6]
*CDCP, 1994, MMWR-MORBID MORTAL W, V43, P58
[7]
*CDCP, 1995, STAT IMM REQ 1994 95, P22
[9]
*COMM BIOETH AM AC, 1988, PEDIATRICS, V81, P69