Acknowledgement
This study was supported by grants from the Dong Kook Pharm. Co., Ltd. (DR 16-03) and the Korea Health Technology R&D Project of the Korea Health Industry Development Institute (KHIDI), funded by the Ministry of Health & Welfare, Republic of Korea (No. HI13C0004 and HI15C1052). This research work was a part of the investigations of LOCAT (Low-dOse CT for acute Appendicitis Trial) Group, which was endorsed by the Radiology Imaging Network of Korea for Clinical Research (RINK-2015-003).
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