Jung-Chul Park, Do-Young Baek, Chang-Sung Kim, Kyoo-Sung Cho, Jung-Kiu Chai, Chong-Kwan Kim, Seong-Ho Choi

J Korean Acad Periodontol.2008;38(3):551-556.   Published online 2008 September 30     DOI: http://dx.doi.org/10.5051/jkape.2008.38.3.551