- Original Articles Periodontitis is associated with rheumatoid arthritis: a study with longstanding rheumatoid arthritis patients in Korea
- In Ah Choi, Jin-Hee Kim, Yong Mi Kim, Joo Youn Lee, Kyung Hwa Kim, Eun Young Lee, Eun Bong Lee, Yong-Moo Lee, Yeong Wook Song
- Korean J Intern Med. 2016;31(5):977-986.