PT - JOURNAL ARTICLE AU - Williams, Karen B TI - Effectiveness of Er:YAG Laser Therapy in Periodontal Patients DP - 2008 Jul 01 TA - American Dental Hygienists Association PG - 32--32 VI - 82 IP - 4 4099 - http://jdh.adha.org/content/82/4/32.short 4100 - http://jdh.adha.org/content/82/4/32.full SO - J Dent Hyg2008 Jul 01; 82