| 2007 | A 2-Week, multicenter, randomized, double-blind, double-dummy, add-on study of the effects of titration on tolerability of tramadol/acetaminophen combination tablet in Korean adults with knee osteoarthritis pain | 이지수 | Article |
| 2017 | Comparative effectiveness of treatment options after conventional DMARDs failure in rheumatoid arthritis | 이지수 | Article |
| 2012 | Do patients with elderly-onset rheumatoid arthritis have severe functional disability? | 이지수 | Article |
| 2018 | Factors associated with quality of life and functional disability among rheumatoid arthritis patients treated with disease-modifying anti-rheumatic drugs for at least 6 months | 이지수 | Article |
| 2019 | Factors associated with time to diagnosis from symptom onset in patients with early rheumatoid arthritis | 이지수 | Article |
| 2020 | Genome-wide association study in a Korean population identifies six novel susceptibility loci for rheumatoid arthritis | 이지수 | Article |
| 2015 | High-density genotyping of immune loci in Koreans and Europeans identifies eight new rheumatoid arthritis risk loci | 이지수 | Article |
| 2017 | Impact of early diagnosis on functional disability in rheumatoid arthritis | 이지수 | Article |
| 2017 | Impact of interstitial lung disease on mortality of patients with rheumatoid arthritis | 이지수 | Article |
| 2012 | Korean Observational Study Network for Arthritis (KORONA): Establishment of a Prospective Multicenter Cohort for Rheumatoid Arthritis in South Korea | 이지수 | Article |
| 2010 | Prevalence of human papilloma virus infections and cervical cytological abnormalities among Korean women with systemic lupus erythematosus | 이지수 | Article |
| 2007 | Risk of interstitial lung disease associated with leflunomide treatment in Korean patients with rheumatoid arthritis | 이지수 | Article |
| 2016 | The frequency of and risk factors for osteoporosis in Korean patients with rheumatoid arthritis | 이지수 | Article |
| 2018 | Treat-to-target strategy for asian patients with early rheumatoid arthritis: Result of a multicenter trial in Korea | 이지수 | Article |
