6Dong YM, Pearce EIF, Yue L, et al. Plaque pH and associated parameters in relation to caries[J]. Caries Res, 1999,33(6):428-436.
7Hillman JD, Brooks TA, Michalek, et al. Construction and characterization of an effector strain of Streptococcus mutans for replacement therapy of dental caries[J]. Infect Immun, 2000,68(3) :543-549.
8Fitzgerald RJ, Adams BO, Sandham HJ, et al. Cariogenicity of a Lactate dehydrogenase-deficient mutant of Streptococcus mutans serotype c in gnotobiotic rats[J]. Infect Immun, 1989,57(3):823-826.
9Hillman JD. Lactate dehydrogenase mutants of Streptococcus mutans:isolation and preliminary characterization[J]. Infect Immun, 1978, 21(1):206-212.
10Hillman JD, Brooks TA, Michalek SM, et al. Construction and characterization of an effector strain of Streptococcus mutans for replacement therapy of dental caries. Infect-Immun, 2000, 68(2): 543-549.