共 18 条
- [1] Abramson JS, 1999, PEDIATRICS, V104, P570, DOI 10.1542/peds.104.3.570
- [3] [Anonymous], 1991, MMWR Recomm Rep, V40, P1
- [6] CDC, 1999, MMWR Morb Mortal Wkly Rep, V48, P563
- [7] *CDC, 1999, IMPL GUID IMM GRANT
- [8] *CDCP, 1999, MMWR-MORBID MORTAL W, V47, P1
- [9] Centers for Disease Control and Prevention (CDC), 1999, MMWR Morb Mortal Wkly Rep, V48, P780
- [10] Centers for Disease Control and Prevention (CDC), 1997, MMWR Morb Mortal Wkly Rep, V46, P378