| 2016 | Antimicrobial activity of lactobacillus strains against uropathogens | 이승주; 이정원 | Article |
| 2019 | Blood Pressure Reference Values for Normal Weight Korean Children and Adolescents: Data from The Korea National Health and Nutrition Examination Survey 1998-2016: The Korean Working Group of Pediatric Hypertension | 홍영미; 김혜순; 이정원 | Article |
| 2019 | Effects of Prenatal Growth Status on Subsequent Childhood Renal Function Related to High Blood Pressure | 박은애; 김혜순; 박혜숙; 조수진; 박보현; 이정원 | Article |
| 2018 | Efficacy and safety of rituximab in childhood-onset, difficult-to-treat nephrotic syndrome A multicenter open-label trial in Korea | 이승주; 이정원 | Article |
| 2024 | Fluctuating risk of acute kidney injury-related mortality for four weeks after exposure to air pollution: A multi-country time-series study in 6 countries | 하은희; 강덕희; 이정원 | Article |
| 2023 | Genotype–phenotype correlation of X-linked Alport syndrome observed in both genders: a multicenter study in South Korea | 이정원 | Article |
| 2021 | Identification of Cardiovascular Risk Factors in Obese Adolescents With Metabolic Syndrome | 홍영미; 김혜순; 이정원 | Article |
| 2023 | Increase of Prevalence of Obesity and Metabolic Syndrome in Children and Adolescents in Korea during the COVID-19 Pandemic: A Cross-Sectional Study Using the KNHANES | 김혜순; 박혜숙; 이정원; 이혜아; 이지현; 최정은 | Article |
| 2022 | Increasing prevalence of fasting hyperglycemia in adolescents aged 10–18 years and its relationship with metabolic indicators: the Korea National Health and Nutrition Examination Study (KNHANES), 2007– 2018 | 김혜순; 박혜숙; 이정원; 이혜아; 이지현 | Article |
| 2022 | The compatibility of new blood pressure reference values for Korean children and adolescents with the US reference: the Korean Working Group of Pediatric Hypertension | 김혜순; 이정원 | Article |
| 2019 | The Protective Effect of Exclusive Breastfeeding on Overweight/Obesity in Children with High Birth Weight | 하은희; 김영주; 김혜순; 이명지; 이정원 | Article |
