RT Journal Article SR Electronic T1 Effectiveness of Er:YAG Laser Therapy in Periodontal Patients JF American Dental Hygienists Association JO J Dent Hyg FD American Dental Hygienists Association SP 32 OP 32 VO 82 IS 4 A1 Williams, Karen B YR 2008 UL http://jdh.adha.org/content/82/4/32.abstract AB