2Jeffcoat MK, Geurs NC, Reddy MS, et al. Current evidence regarding periodontal disease as a risk factor in preterm birth. AnnPeriodontol, 2001,6:183-188.
3Offenbacher S, Lieff S, Boggess KA, et al. Maternal periodontitisand prematurity. Part I: Obstetric outcome of prematurity and growth restriction. Ann Periodontol, 2001,6: 164-174.
4Gibbs RS. The relationship between infections and adverse pregnancy outcomes: an overview. Ann Periodontol, 2001, 6: 153-163.
5Li X, Kolltveit KM, Tronstad L, et al. Systemic diseases caused byoral infection. Clin Microbiol Rev, 2000, 13: 547-558.
6Collins JG, Smith MA, Arnold RR, et al. Effects of Escherichia coli and Porphyromonas gingivalis lipopolysaccharide on pregnancyoutcome in the golden hamsters. Infet Immun,1994,62: 4652-4655.
7Dixon NG, Ebright D, Defrancesco MA, et al. Orogenital contact: a cause of chorioamnionitis?0bstet Gynecol, 1994, 84: 654-655.
8Mitchell-Lewis D, Engebretson SP, Chen J, et al. Periodontal infections and pre-term birth: early findings from a cohort of young minority women in New York. Eur J Oral Sci , 2001, 109: 34-39.
9Madianos PN, Lieff S, Murtha AP, et al. Maternal periodontitis and prematurity. Part Ⅱ: Maternal infection and fetal exposure. AnnPeriodontol, 2001, 6: 175-182.
10Dasanayake AP, Boyd D, Madianos P, et al. Periodontal pathogen specific maternal serum immunoglobulin level may predict low birth weight. J Dent Res, 2001, 80:188.
