Authors’ contributions
RECRUITMENT
Study design (conceptualization): Justin Y. Jeon, Nam Kyu Kim, Sang Hui Chu. Funding acquisition: Justin Y. Jeon, Nam Kyu Kim. Patient recruitment: Jihee Min, Hye Jeong Jung, Minsoo Cho, Seung Yoon Yang. Investigation: Jihee Min, Kiyong An, Hyuna Park, Won-hee Cho. >Data collection: Jihee Min, Justin Y. Jeon. Project administration: Jihee Min, Justin Y. Jeon. Supervision: Justin Y. Jeon and Nam Kyu Kim. Writing up of the first draft of the paper: Jihee Min, Justin Y. Jeon.