3Lucas VS, Beifhton D,Toberts GJ,et al. Changes in the oral streptococcal flora of ehildren undergoing allofenic bone marrow transplantation[ J]. J hffect,1997,35(2) : 135 - 14-1.
4Truper HG, De Clari L. Taxonomic note: necessary correction of specific epithets formed as substantives (nouns) " in apposition" [ J ]. Int J Syst Bacteriol, 1997,47 (3) :908 - 909.
5Gamier F, Gerbaud G, Courvalin P,et al. Identification of clinically relevant v iridans streptococci to the species by PCR[ J ]. J Clin Microbiol, 1997,35 ( 9 ) :2337 - 2341.
6Svensater G,Sjogreen B, Hamihion IR. Multiple stress responses in Streptococcus mutans and the induction of general and stress-specific protain[ J ]. Microniology ,2000,146 ( 1 ) : 107 - 117.
7Bowden GH, Hamilton IR. Survival of oral bacteria [ J ]. Crit Rev Oral Biol Med,1998,9( 1 ) :54 -85.
9Alam S, Brailsford SR, Adams S, et al. Genotypic heterogeneity of Streptococcus oralis and distinct acidufie subpopulations in hmnan dental plaque [ J ]. Appl Environ Microbiol, 2000,66 ( 8 ) : 3330 -3336.
10Sansone C,Houle JV,Joshipura K,et al. The association of mutans streptococci and non mutans streptococci capable of acidogenesis at a low PH with dental caries on enamel and root surfaces [ J]. Dent Res, 1993,72(2) :508 -516.