共 27 条
[1]
*AM AC FAM PHYS, 1996, SUMM POL REC PER HLT
[2]
*AM AC PED, 1998, FELL DIR
[3]
[Anonymous], 2000, MMWR Recomm Rep, V49, P1
[4]
*CDCP, 1998, MMWR-MORBID MORTAL W, V47, P365
[5]
Centers for Disease Control and Prevention (CDC), 2001, MMWR Morb Mortal Wkly Rep, V50, P637
[6]
Centers for Disease Control and Prevention (CDC), 1998, MMWR Morb Mortal Wkly Rep, V47, P547
[7]
Centers for Disease Control and Prevention (CDC), 1997, MMWR Morb Mortal Wkly Rep, V46, P409
[8]
Comm Infect Dis, 2000, PEDIATRICS, V105, P136
[10]
FISCHER TJ, 1981, PEDIATRICS, V67, P313