1. National dental policies and socio-demographic factors affecting changes in the incidence of periodontal treatments in Korean: A nationwide population-based retrospective cohort study from 2002–2013. Issue 1 (December 2016) Authors: Lee, Jae-Hong; Lee, Jung-Seok; Choi, Jung-Kyu; Kweon, Hye-In; Kim, Young-Taek; Choi, Seong-Ho Journal: BMC oral health Issue: Volume 16:Issue 1(2016) Page Start: 1 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗