共 21 条
[3]
COONAN KM, 1992, 32ND P INT C ANT AG, P284
[5]
DENNY FW, 1953, PEDIATRICS, V11, P7
[6]
HUSKINS WC, 1989, EPIDEMIOL INFECT, V102, P401
[9]
KAPLAN EL, 1981, J LAB CLIN MED, V98, P326