Lee, J. ., Choi, K. ., Jung, H. ., Baik, G. ., Park, J. ., Kim, S. ., … Gastrointestinal, R. K. C. of H. and U. (2018). Seroprevalence of Helicobacter pylori in Korea: A multicenter, nationwide study conducted in 2015 and 2016. Helicobacter. https://doi.org/10.1111/hel.12463 (Original work published 2018)

Bang, W. ., Lee, D. ., Kim, K. ., Cho, D. ., Sung, J. ., Han, I. ., … Seo, Y. . (2018). Relationships between vitamin D and paraspinal muscle: human data and experimental rat model analysis. The Spine Journal : Official Journal of the North American Spine Society. https://doi.org/10.1016/j.spinee.2018.01.007 (Original work published 2018)