1. Yi-Kai Kao, Jian-Han Chen, "Adult Jejuno-jejunal intussusception due to inflammatory fibroid polyp", Medicine (Baltimore). 2020 Sep 4;99(36):e22080. [IF 1.889 (2020); Q2 (Medicine, General & Internal)]
2. Yi-Kai Kao, Chih-I Chen, "Snapshot quiz: Crohn’s disease", British Journal of Surgery. April 2021. [IF 4.287 (2021); JCR Ranking: Q1 (Surgery)]
3. Yi-Kai Kao, Hung-Yu Lin, Chih-I Chen, Yu-Chieh Su, Jian-Han Chen, "The Bariatric Surgery is Associated with a Lower Incidence of Malignancy: Real World Data from Taiwan", Obesity Surgery. 2021 Jun 5. [IF 3.479 (2021); JCR Ranking: Q1 (Surgery)]
4. Yu-Chun Lin, Kuang-Wen Liu, Hsin-Pao Chen, Yi-Jie Chen, Yi-Kai Kao, Ling-Chiao Song, Chih-I Chen, “Long-term Outcomes in Rectal Cancer Patients with Clinical Complete Response after Concurrent Chemoradiotherapy: A Local Hospital Experience”, Journal of Society of Colon and Rectal Surgeons, Taiwan 2021.
5. Yi-Kai Kao, Hsin-Pao Chen, Kuang-Wen Liu, Ling-Chiao Song, Yi-Chieh Chen, Yu-Chun Lin, Chih-I Chen, "Impact on inadequate lymph node harvest on survival in T4N0 colorectal cancer A would-be medical center experience in Taiwan", Medicine (2022) 101:52. [IF 1.6 (2022); Q3 (Medicine, General & Internal)]
6. Shih-Yen Hsu, Chi-Yuan Wang, Yi-Kai Kao, Kuo-Ying Liu, Ming-Chia Lin, Li-Ren Yeh, Yi-Ming Wang, Chih-I Chen, Feng-Chen Kao, “Using Deep Neural Network Approach for Multiple-Class Assessment of Digital Mammography”, Healthcare. 2022 Nov 27. [IF 2.8 (2022); JCR Ranking: Q2 (Health Policy & Services)]
7. Yi-Kai Kao, Hsin-Pao Chen, Kuang-Wen Liu, Ling-Chiao Song, Chih-I Chen, "Neoadjuvant Chemoradiotherapy followed by Pelvic Lymph Node Dissection in Patients with Locally Advanced Rectal Cancer: A 18-patient Case Series", Journal of Society of Colon and Rectal Surgeons, Taiwan 2024.
8. Pin-Chun Chen, Po-Wen Yang, Yi-Kai Kao, Chia-Hung Chen, Chih-Jong Tsai, Yi-Chieh Chen, Ling-Chiao Song, Kai Lung Tsai, Richard C. Wu, Chih-I Chen, “Laparoscopic training workshop to assess medical students' skill acquisition and interest in surgical careers”, BMC Medical Education (2024) [IF 3.2 (2024); JCR Ranking: Q1 (Education); Q1 (Medicine (Miscellaneous))]
9. Kamolthip Ruckwongpatr, Chirawat Paratthakonkun, Usanut Sangtongdee, Iqbal Pramukti, Ira Nurmala, Kanokwan Angkasith, Weena Thanachaisakul, Jatuphum Ketchatturat, Mark D. Griffiths, Yi-Kai Kao*, Chung-Ying Lin, “Validity, Reliability, and Measurement Invariance of the Thai Smartphone Application-Based Addiction Scale (SABAS) and Bergen Social Media Addiction Scale (BSMAS)”, International Journal of Mental Health Promotion (2024) [IF 2.8 (2024); JCR Ranking: Q3 (Psychiatry); Q3 (Public, Environmental & Occupational Health)]
10. Hsin-Pao Chen, Chih-I Chen, Ling-Chiao Song, Yu-Chun Lin, Yi-Kai Kao, Pin-Chun Chen, Chia-Hung Chen, Kuang-Wen Liu, “Higher hospital frailty risk score is predictive of 90-day readmission after minimally invasive colorectal cancer surgery: a national readmission database analysis”, American Journal of Cancer Research (2025) [IF 2.9 (2025); Q2 (Oncology)]
11. Pin-Chun Chen, Yi-Kai Kao, Po-Wen Yang, Chia-Hung Chen, Chih-I Chen, “Long-term outcomes and lymph node metastasis following endoscopic resection with additional surgery or primary surgery for T1 colorectal cancer”, Scientific Reports (2025) [IF 3.9 (2025)]
12. Pin-Chun Chen, Yi-Kai Kao, Po-Wen Yang, Chia-Hung Chen, Chih-I Chen, “Ice Packing Versus Sitz Baths for Post-hemorrhoidectomy Pain Management: A Randomized Controlled Trial”, Diseases of the Colon & Rectum (2025) [IF 3.7 (2025); Q1 (Surgery)]
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