Peer-reviewed journals only. Current academic citation indices: h-index: 14; i10-index: 22; Publications: 53; Citations: 561 (Google Scholar). Some official sources: ORCID and Google Scholar. The list down here is extracted from PUBMED result only.

1: Kaise T, Sakihara E, Tamaki K, Miyata H, Hirahara N, Kirichek O, Tawara R, Akiyama S, Katsumata M, Haruya M, Ishii T, Simard EP, Miller BE, Tal-Singer R. Prevalence and Characteristics of Individuals with Preserved Ratio Impaired Spirometry (PRISm) and/or Impaired Lung Function in Japan: The OCEAN Study. Int J Chron Obstruct Pulmon Dis. 2021 Sep 23;16:2665-2675. doi: 10.2147/COPD.S322041. PMID: 34588775; PMCID: PMC8476108.

2: Tamaki K, Sakihara E, Miyata H, Hirahara N, Kirichek O, Tawara R, Akiyama S,Katsumata M, Haruya M, Ishii T, Simard EP, Miller BE, Tal-Singer R, Kaise T. Utility of Self-Administered Questionnaires for Identifying Individuals at Risk of COPD in Japan: The OCEAN (Okinawa COPD casE finding AssessmeNt) Study. Int J Chron Obstruct Pulmon Dis. 2021 Jun 17;16:1771-1782. doi: 10.2147/COPD.S302259. PMID: 34168439; PMCID: PMC8216667.

3: Shimada K, Yamamoto H, Nakatani E, Kumamaru H, Nishimura S, Ichihara N, Hirahara N, Mori K, Kotani M, Miyachi Y, Miyata H. Real-World Evidence of the Incidence of and Risk Factors for Type 1 Diabetes Mellitus and Hypothyroidism as Immune-Related Adverse Events Associated With Programmed Cell Death-1 Inhibitors. Endocr Pract. 2021 Jun;27(6):586-593. doi: 10.1016/j.eprac.2020.12.009. Epub 2020 Dec 24. PMID: 34057406.

4: Ide Y, Tachimori H, Hirata Y, Hirahara N, Ota N, Sakamoto K, Ikeda T, Minatoya K. Risk analysis for patients with a functionally univentricular heart after systemic-to-pulmonary shunt placement. Eur J Cardiothorac Surg. 2021 Jul 30;60(2):377-383. doi: 10.1093/ejcts/ezab077. PMID: 33712829.

5: Endo I, Hirahara N, Miyata H, Yamamoto H, Matsuyama R, Kumamoto T, Homma Y, Mori M, Seto Y, Wakabayashi G, Kitagawa Y, Miura F, Kokudo N, Kosuge T, Nagino M, Horiguchi A, Hirano S, Yamaue H, Yamamoto M, Miyazaki M. Mortality, morbidity, and failure to rescue in hepatopancreatoduodenectomy: An analysis of patients registered in the National Clinical Database in Japan. J Hepatobiliary
Pancreat Sci. 2021 Apr;28(4):305-316. doi: 10.1002/jhbp.918. Epub 2021 Mar 20. PMID: 33609319.

6: Hirata Y, Hirahara N, Murakami A, Motomura N, Miyata H, Takamoto S. Status of cardiovascular surgery in Japan: A report based on the Japan Cardiovascular Surgery Database 2017-2018. 1. Congenital heart surgery. Asian Cardiovasc Thorac Ann. 2021 May;29(4):289-293. doi: 10.1177/0218492320981501. Epub 2020 Dec 29. PMID: 33375819.

7: Shimizu H, Hirahara N, Motomura N, Miyata H, Takamoto S. Status of cardiovascular surgery in Japan between 2017 and 2018: A report based on the Japan Cardiovascular Surgery Database. 4. Thoracic aortic surgery. Asian Cardiovasc Thorac Ann. 2021 May;29(4):278-288. doi: 10.1177/0218492320981456. Epub 2020 Dec 20. PMID: 33342246.

8: Hirahara N, Miyata H, Kato N, Hirata Y, Murakami A, Motomura N. Development of Bayesian Mortality Categories for Congenital Cardiac Surgery in Japan. Ann Thorac Surg. 2021 Sep;112(3):839-845. doi: 10.1016/j.athoracsur.2020.07.012. Epub 2020 Sep 17. PMID: 32949608.

9: Terui K, Hirahara N, Tachimori H, Kato N, Fujishiro J, Watanabe E, Tomita H, Okamoto T, Fujiogi M, Okamoto S, Yonekura T, Miyata H, Usui N. Development and validation of risk models for mortality and morbidity in 12 major pediatric surgical procedures: A study from the National Clinical Database-Pediatric of Japan. J Pediatr Surg. 2020 Oct;55(10):2064-2070. doi: 10.1016/j.jpedsurg.2020.03.031. Epub 2020 Apr 12. PMID: 32507636.

10: Fujishiro J, Watanabe E, Hirahara N, Terui K, Tomita H, Ishimaru T, Miyata H. Laparoscopic Versus Open Appendectomy for Acute Appendicitis in Children: a Nationwide Retrospective Study on Postoperative Outcomes. J Gastrointest Surg. 2021 Apr;25(4):1036-1044. doi: 10.1007/s11605-020-04544-3. Epub 2020 Mar 3. PMID: 32128682.

11: Mizuno S, Ono K, Mikami Y, Naganuma M, Fukuda T, Minami K, Masaoka T, Terada S, Yoshida T, Saigusa K, Hirahara N, Miyata H, Suda W, Hattori M, Kanai T. 5-Aminosalicylic acid intolerance is associated with a risk of adverse clinical outcomes and dysbiosis in patients with ulcerative colitis. Intest Res. 2020 Jan;18(1):69-78. doi: 10.5217/ir.2019.00084. Epub 2020 Jan 30. PMID: 32013315; PMCID: PMC7000647.

12: Fujishiro J, Fujiogi M, Hirahara N, Terui K, Okamoto T, Watanabe E, Ishimaru T, Miyata H. Abdominal Drainage at Appendectomy for Complicated Appendicitis in Children: A Propensity-matched Comparative Study. Ann Surg. 2021 Dec 1;274(6):e599-e604. doi: 10.1097/SLA.0000000000003804. PMID: 31977513.

13: Nawata K, D’Agostino RS, Habib RH, Kumamaru H, Hirahara N, Miyata H, Motomura N, Takamoto S, Shahian DM, Grover FL. First Database Comparison Between the United States and Japan: Coronary Artery Bypass Grafting. Ann Thorac Surg. 2020 Apr;109(4):1159-1164. doi: 10.1016/j.athoracsur.2019.07.095. Epub 2019 Sep 17. PMID: 31539515.

14: Abe T, Nakano K, Hirahara N, Motomura N, Miyata H, Takamoto S. Correction to: Current status of cardiovascular surgery in Japan, 2015 and 2016, a report based on the Japan Cardiovascular Surgery Database. 3-Valvular heart surgery. Gen Thorac Cardiovasc Surg. 2019 Sep;67(9):750. doi: 10.1007/s11748-019-01178-4. Erratum for: Gen Thorac Cardiovasc Surg. 2019 Sep;67(9):742-749. PMID: 31385164.

15: Hirahara N, Miyata H, Motomura N, Kohsaka S, Nishimura T, Takamoto S. Procedure- and Hospital-Level Variation of Deep Sternal Wound Infection From All-Japan Registry. Ann Thorac Surg. 2020 Feb;109(2):547-554. doi: 10.1016/j.athoracsur.2019.05.076. Epub 2019 Jul 20. PMID: 31336072.

16: Hirata Y, Hirahara N, Murakami A, Motomura N, Miyata H, Takamoto S. Current status of cardiovascular surgery in Japan, 2015 and 2016: a report based on the Japan Cardiovascular Surgery Database. 1-congenital heart surgery. Gen Thorac Cardiovasc Surg. 2019 Sep;67(9):731-735. doi: 10.1007/s11748-019-01160-0. Epub
2019 Jul 20. PMID: 31327137.

17: Shimizu H, Hirahara N, Motomura N, Miyata H, Takamoto S. Current status of cardiovascular surgery in Japan, 2015 and 2016: analysis of data from Japan Cardiovascular Surgery Database. 4-Thoracic aortic surgery. Gen Thorac Cardiovasc Surg. 2019 Sep;67(9):751-757. doi: 10.1007/s11748-019-01163-x. Epub 2019 Jul 16. PMID: 31312983.

18: Abe T, Nakano K, Hirahara N, Motomura N, Miyata H, Takamoto S. Current status of cardiovascular surgery in Japan, 2015 and 2016, a report based on the Japan Cardiovascular Surgery Database. 3-Valvular heart surgery. Gen Thorac Cardiovasc Surg. 2019 Sep;67(9):742-749. doi: 10.1007/s11748-019-01161-z. Epub 2019 Jul 3. Erratum in: Gen Thorac Cardiovasc Surg. 2019 Aug 5;: PMID: 31270746.

19: Saito A, Hirahara N, Motomura N, Miyata H, Takamoto S. Current Status of cardiovascular surgery in Japan, 2015 and 2016: a report based on the Japan Cardiovascular Surgery Database. 2-Isolated coronary artery bypass grafting surgery. Gen Thorac Cardiovasc Surg. 2019 Sep;67(9):736-741. doi: 10.1007/s11748-019-01162-y. Epub 2019 Jun 29. PMID: 31256329.

20: Sughimoto K, Hirata Y, Hirahara N, Miyata H, Suzuki T, Murakami A, Miyaji K, Takamoto S. Mid-term result of atrioventricular valve replacement in patients with a single ventricle. Interact Cardiovasc Thorac Surg. 2018 Dec 1;27(6):895-900. doi: 10.1093/icvts/ivy155. PMID: 29868844.

21: Yoshida T, Miyata H, Konno H, Kumamaru H, Tangoku A, Furukita Y, Hirahara N, Wakabayashi G, Gotoh M, Mori M. Risk assessment of morbidities after right hemicolectomy based on the National Clinical Database in Japan. Ann Gastroenterol Surg. 2018 Apr 16;2(3):220-230. doi: 10.1002/ags3.12067. PMID: 29863168; PMCID: PMC5980426.

22: Saito A, Hirahara N, Motomura N, Miyata H, Takamoto S. Correction to: Current status of cardiovascular surgery in Japan, 2013 and 2014: A report based on the Japan Cardiovascular Surgery database 3. Coronary artery bypass surgery. Gen Thorac Cardiovasc Surg. 2018 Mar;66(3):182-183. doi: 10.1007/s11748-018-0883-4. Erratum for: Gen Thorac Cardiovasc Surg. 2018 Jan;66(1):8-12. PMID: 29344799.

23: Nakano K, Hirahara N, Motomura N, Miyata H, Takamoto S. Current status of cardiovascular surgery in Japan, 2013 and 2014: A report based on the Japan Cardiovascular Surgery Database. 4. Valvular heart surgery. Gen Thorac Cardiovasc Surg. 2018 Jan;66(1):13-18. doi: 10.1007/s11748-017-0842-5. Epub 2017 Nov 13. PMID: 29134537.

24: Saito A, Hirahara N, Motomura N, Miyata H, Takamoto S. Current status of cardiovascular surgery in Japan, 2013 and 2014: A report based on the Japan Cardiovascular Surgery Database 3. Coronary artery bypass surgery. Gen Thorac Cardiovasc Surg. 2018 Jan;66(1):8-12. doi: 10.1007/s11748-017-0848-z. Epub 2017 Nov 13. Erratum in: Gen Thorac Cardiovasc Surg. 2018 Jan 17;: PMID: 29134536.

25: Hirata Y, Hirahara N, Murakami A, Motomura N, Miyata H, Takamoto S. Current status of cardiovascular surgery in Japan 2013 and 2014: A?report based on the Japan Cardiovascular Surgery Database. 2: Congenital heart surgery. Gen Thorac Cardiovasc Surg. 2018 Jan;66(1):4-7. doi: 10.1007/s11748-017-0841-6. Epub 2017 Nov 13. PMID: 29134535.

26: Hirata Y, Miyata H, Hirahara N, Murakami A, Kado H, Sakamoto K, Sano S, Takamoto S. Long-Term Results of Bilateral Pulmonary Artery Banding Versus Primary Norwood Procedure. Pediatr Cardiol. 2018 Jan;39(1):111-119. doi: 10.1007/s00246-017-1735-1. Epub 2017 Sep 21. PMID: 28936753.

27: Hoashi T, Hirahara N, Murakami A, Hirata Y, Ichikawa H, Kobayashi J, Takamoto S. Current Surgical Outcomes of Congenital Heart Surgery for Patients With Down Syndrome in Japan. Circ J. 2018 Jan 25;82(2):403-408. doi: 10.1253/circj.CJ-17-0483. Epub 2017 Sep 12. PMID: 28904256.

28: Shimizu H, Hirahara N, Motomura N, Miyata H, Takamoto S. Current status of cardiovascular surgery in Japan, 2013 and 2014: a report based on the Japan Cardiovascular Surgery Database 5. Thoracic aortic surgery. Gen Thorac Cardiovasc Surg. 2017 Dec;65(12):671-678. doi: 10.1007/s11748-017-0822-9. Epub 2017 Sep 5. PMID: 28875285.

29: Watanabe T, Miyata H, Konno H, Kawai K, Ishihara S, Sunami E, Hirahara N, Wakabayashi G, Gotoh M, Mori M. Prediction model for complications after low anterior resection based on data from 33,411 Japanese patients included in the National Clinical Database. Surgery. 2017 Jun;161(6):1597-1608. doi: 10.1016/j.surg.2016.12.011. Epub 2017 Jan 30. PMID: 28153378.

30: Yokoo H, Miyata H, Konno H, Taketomi A, Kakisaka T, Hirahara N, Wakabayashi G, Gotoh M, Mori M. Models predicting the risks of six life-threatening morbidities and bile leakage in 14,970 hepatectomy patients registered in the National Clinical Database of Japan. Medicine (Baltimore). 2016 Dec;95(49):e5466. doi: 10.1097/MD.0000000000005466. Erratum in: Medicine (Baltimore). 2017 Apr 28;96(17):e6813. PMID: 27930526; PMCID: PMC5265998.

31: Konno H, Kamiya K, Kikuchi H, Miyata H, Hirahara N, Gotoh M, Wakabayashi G, Ohta T, Kokudo N, Mori M, Seto Y. Association between the participation of board-certified surgeons in gastroenterological surgery and operative mortality after eight gastroenterological procedures. Surg Today. 2017 May;47(5):611-618. doi: 10.1007/s00595-016-1422-5. Epub 2016 Sep 29. PMID: 27688030.

32: Kunisaki C, Miyata H, Konno H, Saze Z, Hirahara N, Kikuchi H, Wakabayashi G, Gotoh M, Mori M. Modeling preoperative risk factors for potentially lethal morbidities using a nationwide Japanese web-based database of patients undergoing distal gastrectomy for gastric cancer. Gastric Cancer. 2017 May;20(3):496-507. doi: 10.1007/s10120-016-0634-0. Epub 2016 Aug 23. PMID: 27553666.

33: Miura F, Yamamoto M, Gotoh M, Konno H, Fujimoto J, Yanaga K, Kokudo N, Yamaue H, Wakabayashi G, Seto Y, Unno M, Miyata H, Hirahara N, Miyazaki M. Validation of the board certification system for expert surgeons (hepato-biliary-pancreatic field) using the data of the National Clinical Database of Japan: part 2 – Pancreatoduodenectomy. J Hepatobiliary Pancreat Sci. 2016
Jun;23(6):353-63. doi: 10.1002/jhbp.348. Epub 2016 May 10. PMID: 26994315.

34: Miura F, Yamamoto M, Gotoh M, Konno H, Fujimoto J, Yanaga K, Kokudo N, Yamaue H, Wakabayashi G, Seto Y, Unno M, Miyata H, Hirahara N, Miyazaki M. Validation of the board certification system for expert surgeons (hepato-biliary-pancreatic field) using the data of the National Clinical Database of Japan: part 1 – Hepatectomy of more than one segment. J Hepatobiliary Pancreat Sci. 2016 Jun;23(6):313-23. doi: 10.1002/jhbp.344. Epub 2016 May 10. PMID: 26991462.

35: Anazawa T, Paruch JL, Miyata H, Gotoh M, Ko CY, Cohen ME, Hirahara N, Zhou L, Konno H, Wakabayashi G, Sugihara K, Mori M. Comparison of National Operative Mortality in Gastroenterological Surgery Using Web-based Prospective Data Entry Systems. Medicine (Baltimore). 2015 Dec;94(49):e2194. doi: 10.1097/MD.0000000000002194. PMID: 26656350; PMCID: PMC5008495.

36: Miyata H, Gotoh M, Hashimoto H, Motomura N, Murakami A, Tomotaki A, Hirahara N, Ono M, Ko C, Iwanaka T. Challenges and prospects of a clinical database linked to the board certification system. Surg Today. 2014 Nov;44(11):1991-9. doi: 10.1007/s00595-013-0802-3. Epub 2014 May 23. PMID: 24849141.

37: Schwartz, A., Yamagishi, K., Hirahara, N., Onishi, H., Barnes, J. IV, Rosman, A., Butler, S. Risk perception and risk attitudes in Tokyo: A report of the first administration of DOSPERT+M in Japan.Judgment and Decision Making.2013;8(6):691-699.