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- Tae Young Park, Hyun Kang, Geun Joo Choi, Hyoung-Chul Oh
- Korean J Intern Med. 2022;37(2):322-339.
- Comparison of procedural sequence in same-day bidirectional endoscopy: a systematic review and meta-analysis
- Geun Joo Choi, Hyoung-Chul Oh, Hee-Kyeong Seong, Jeong Wook Kim, Jin Soo Ko, Hyun Kang
- Korean J Intern Med. 2020;35(2):331-341.
- Diagnostic accuracy of 22/25-gauge core needle in endoscopic ultrasound-guided sampling: systematic review and meta-analysis
- Hyoung-Chul Oh, Hyun Kang, Jae Young Lee, Geun Joo Choi, Jung Sik Choi
- Korean J Intern Med. 2016;31(6):1073-1083.