- Original Articles Endocrinology-metabolism Validation of the Friedewald formula for estimating low density lipoprotein cholesterol: the Korea National Health and Nutrition Examination Survey, 2009 to 2011
- Jongseok Lee, Sungok Jang, Haemin Jeong, Ohk-Hyun Ryu
- Korean J Intern Med. 2020;35(1):150-159.
- The effect of high-dose vitamin D supplementation on insulin resistance and arterial stiffness in patients with type 2 diabetes
- Ohk-Hyun Ryu, Wankyo Chung, Sungwha Lee, Kyung-Soon Hong, Moon-Gi Choi, Hyung Joon Yoo
- Korean J Intern Med. 2014;29(5):620-629.
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