1. American Academy of Pediatric Dentistry 2004 Clinical Guidelines on Infant Oral Health Care http://www.aapd.org/media/policies_guidelines/P_ECCUniqueChallenges.pdf
2. American Academy of Pediatric Dentistry 2009 Guideline on Perinatal Oral Health Care http://www.aapd.org/media/Policies_Guidelines/G_PerinatalOralHealthCare.pdf
3. Task force on periodontal treatment of pregnant women;American Academy of Periodontology;Journal of Periodontology,2004
4. American Academy of Periodontology 2007 Periodontal Gum Disease http://www.perio.org/consumer/2a.html
5. Australian College of Midwives 2008 National Midwifery Guidelines for Consultation and Referral 2nd edn http://www.midwives.org.au/Portals/8/Documents/standards%20&%20guidelines/Consultation%20Referral%20Guidelines%20Sept%202008.pdf