共 22 条
[1]
[Anonymous], 1990, MMWR Recomm Rep, V39, P1
[2]
BARTOLOZZI G, 1994, VACCINAZIONE 2000, V29, P1
[3]
*CDC, 1980, MMWR-MORBID MORTAL W, V29, P470
[4]
Dias J.A., 1996, Euro Surveill, V1, P25
[5]
FINE PEM, 1987, REV INFECT DIS, V9, P866
[7]
Gluck R, 1986, Dev Biol Stand, V65, P29
[10]
*ISTAT, 1995, I NAZ STAT COMP STAT