1. Ryuichi Ohta, Chiaki Sano; Comprehensive Management of Vasculitis and Suspected Polyarteritis Nodosa in an Older Patient.(March 17, 2023) Cureus 15(3): e36307. doi: 10.7759/cureus.36307 (IF 1.2)

2. Ryuichi Ohta, Tsuyoshi Mishiro, Chiaki Sano; Timing of Treatment for Cytomegalovirus Infection in an Immunocompetent Middle-Aged Woman With Fulminant Ulcerative Colitis: A Case Report. (March 13, 2023) Cureus 15(3): e36092. doi:10.7759/cureus.36092 (IF 1.2)

3. Kotaro Murakami, Nozomi Nishikura, Tsuyoshi Mishiro, Chiaki Sano, Ryuichi Ohta; Diagnosing Infectious Hepatic Cysts in an Older Patient With Multiple Skin Masses: A Case Report. (March 10, 2023) Cureus 15(3): e35993. doi:10.7759/cureus.35993 (IF 1.2)

4. Kanako Nonaka, Shota Watanabe, Chiaki Sano, Ryuichi Ohta: Treating Exudative Pleurisy Accompanied by Felty Syndrome in an Older Patient With Advanced Rheumatoid Arthritis. (April 07, 2023) Cureus 15(4): e37270. doi:10.7759/cureus.37270 (IF 1.2)

5. Ryuichi Ohta, Chiaki Sano: Di˜erentiating Between Undi˜erentiated Peripheral Spondyloarthritis From Septic Arthritis: A Case Report. (April 17, 2023) Cureus 15(4): e37742. doi:10.7759/cureus.37742 (IF 1.2)

6. Ryuichi Ohta, Hirotaka Ikeda, Chiaki Sano: Rheumatoid Vasculitis Complicated With Acute Inflammatory Demyelinating Polyneuropathy in an Older Female: A Case Report. (April 27, 2023) Cureus 15(4): e38214. doi:10.7759/cureus.38214 (IF 1.2)

7. Ryuichi Ohta, Chiaki Sano: Establishing Exercise Programs in Rural Settings Through Collaboration With Family Physicians. (May 10, 2023) Cureus 15(5): e38814. doi: 10.7759/cureus.38814 (IF 1.2)

8. Ryuichi Ohta, Yumi Naito, Nozomi Nishikura, Keita Inoue, Chiaki Sano: Thrombocytopenia in Anti-neutrophil Cytoplasmic Antibody-Associated Vasculitis Indicating the Presence of Cytomegalovirus Infection: A Case Report. (May 10, 2023) Cureus 15(5): e38850. doi:10.7759/cureus.38850 (IF 1.2)

9. Taichi Fujimori, Ryuichi Ohta, Chiaki Sano: Diagnostic Errors in Japanese Community Hospitals and Related Factors: A Retrospective Cohort Study. Healthcare 2023, 11(11), 1539; https://doi.org/10.3390/healthcare11111539 (IF 2.8)

10.Ryuichi Ohta, Nozomi Nishikura, Hirotaka Ikeda, Chiaki Sano: Giant Cell Arteritis With Chronic Bronchitis Successfully Treated With Tocilizumab. (June 08, 2023) Cureus 15(6): e40146. doi:10.7759/cureus.40146 (IF 1.2)

11.Ryuichi Ohta, Chiaki Sano: Thrombocytopenia, Anasarca, Myelofibrosis, Renal dysfunction, and Organomegaly (TAFRO) Syndrome Initially Diagnosed as Fibromyalgia: A Case Report. 71 (July 26, 2023) Cureus 15(7): e42514. doi:10.7759/cureus.42514 (IF 1.2)

12.Mao Yuasa, Kazuki Suyama, Kazuya Adachi, Shiho Amano, Chiaki Sano, Ryuichi Ohta: Mycobacterium-Induced Reactive Arthritis in an Older Adult With Rheumatoid Arthritis. (August 07, 2023) Cureus 15(8): e43057. doi:10.7759/cureus.43057 (IF 1.2)

13.Ryuichi Ohta, Chiaki Sano: Overcoming Ethical Issues Surrounding the Relationships Between Physicians and Pharmaceutical Companies in Rural Hospitals. (August 11, 2023) Cureus 15(8): e43320. doi:10.7759/cureus.43320 (IF 1.2)

14.Nozomi Nishikura, Ryuichi Ohta, Chiaki Sano: Implementation of Near-Peer Learning for the Sustainability of Rural Family Medicine Education. (August 18, 2023) Cureus 15(8): e43709. doi:10.7759/cureus.43709 (IF 1.2) 15.Ryuichi Ohta, Chiaki Sano: Aortic Dissection and Hypotension Without Cardiac Tamponade: A Case Report. (August 30, 2023) Cureus

15(8): e44418. doi:10.7759/cureus.44418 (IF 1.2)

16.Ryuichi Ohta, Chiaki Sano: Case Report-Driven Medical Education in Rural Family Medicine Education: A Thematic Analysis. Healthcare 2023, 11(16), 2270; https://doi.org/10.3390/ healthcare11162270 (IF 2.8)

17.Takashi Koike, Ryuichi Ohta, Yuhei Matsuda, Chiaki Sano, Takahiro Kanno: Nursesʼ Awareness of and Current Approaches to Oral Care in a Community Hospital in Japan: A Longitudinal Study of Dental Specialistsʼ Interventions. Healthcare 2023, 11(17), 2425; https://doi.org/10.3390/healthcare11172425 (IF 2.8)

18.Masato Ishii, Taichi Fujimori, Chiaki Sano, Ryuichi Ohta: Occult Bacteremia Caused by Enterococcus-Associated Pyuria in an Elderly Man. (September 20, 2023) Cureus 15(9): e45582. doi:10.7759/cureus.45582 (IF 1.2)

19.Tomoe Nagayama, Junya Ohara, Chiaki Sano, Ryuichi Ohta: Staphylococcus epidermidis Bacteremia in an Older Patient With Guillain-Barré Syndrome With Fever of Unknown Origin: A Case Report. (September 25, 2023) Cureus 15(9): e45940. doi:10.7759/cureus.45940 (IF 1.2)

20.Tomoya Hasegawa, Kasumi Nishikawa, Yutaka Ohjino, Chiaki Sano, Ryuichi Ohta: A Case of Late-Onset Systemic Lupus Erythematosus With Systemic Symptoms Leading to Multiple Organ Failure. (October 03, 2023) Cureus 15(10): e46428. doi:10.7759/cureus.46428 (IF 1.2)

21.Yuki Amano, Hirotaka Ikeda, Chiaki Sano, Ryuichi Ohta: A Case of Septic Encephalopathy Diagnosed Following Non-inflammatory Febrile Response in an Elderly Patient After Sepsis. (October 06, 2023) Cureus 15(10): e46600. doi:10.7759/cureus.46600 (IF 1.2)

22.Ryuichi Ohta, Akiko Yata, Chiaki Sano: Healthcare Profession Studentsʼ Motivations for Learning About Community Organizing: A Thematic Analysis. (October 12, 2023) Cureus 15 72(10): e46881. doi:10.7759/cureus.46881 (IF 1.2)

23.Minami Kakehi, Shiho Amano, Chiaki Sano, Ryuichi Ohta：Atypical Adult Stillʼ s Disease Complicated by Hemophagocytic Syndrome in an Older Patient: A Case Report. (October 12, 2023) Cureus 15(10): e46922. doi:10.7759/cureus.46922 (IF 1.2)

24.Eri Takao, Sora Matsushima, Keisuke Matsumoto, Naoto Mouri, Chiaki Sano, Ryuichi Ohta: Castleman Disease in an Older Patient With the Onset of Right Pleural E¢usion. (October 14, 2023) Cureus 15(10): e47035. doi:10.7759/cureus.47035 (IF 1.2)

25.Yuta Horinishi, Ryuichi Ohta, Chiaki Sano: A Case of Insulin Autoimmune Syndrome Accompanied With Systemic Joint Pain: A Case Report. (October 16, 2023) Cureus 15(10): e47140. doi:10.7759/cureus.47140 (IF 1.2)

26.Toshiki Fukunaga, Ryuichi Ohta, Chiaki Sano: The Association Between Vitamin B1 Deficiency and Anemia Among Elderly Patients at a Rural Hospital in Japan: A Cross-Sectional Study. (October 17, 2023) Cureus 15(10): e47173. doi:10.7759/cureus.47173 (IF 1.2)

27.Ryuichi Ohta, Chiaki Sano: Utilizing Learn-to-Rank Systems for More E¢ective Diagnosis in Rural Family Medicine. (Editorial)(October 17, 2023) Cureus 15(10): e47219. doi:10.7759/ cureus.47219 (IF 1.2)

28.Ryuichi Ohta, Chiaki Sano: Rural health dialogue for the sustainability of help-seeking behaviors among older patients: grounded theory approach. BMC Geriatrics 2023, 23:674 https://doi.org/10.1186/s12877-023-04401-3 (IF 4.1)

29.Ryuichi Ohta, Nozomi Nishikura, Chiaki Sano: What Do Medical Students Learn about Community Care from Discussions with General Physicians? A Thematic Analysis. Medicina 2023, 59(10), 1855; https://doi.org/10.3390/medicina59101855 (IF 2.6)

30.Ryuichi Ohta, Takuji Katsube, Chiaki Sano: Shared Reading as a Community of Practice for Overcoming the Generation Gap and Improving Psychological Safety in Rural Family Medicine Education: A Grounded-Theory Approach. (October 19, 2023) Cureus 15(10): e47331. doi:10.7759/cureus.47331 (IF 1.2)

31.Yutaka Ohjino, Kasumi Nishikawa, Nozomi Nishikura, Chiaki Sano, Ryuichi Ohta: A Case of Suspected T-cell Intravascular Lymphoma Mimicking Multiple Hepatic Abscesses and Adult-Onset Stillʼ s Disease. (October 23, 2023) Cureus 15(10): e47534. doi:10.7759/ cureus.47534 (IF 1.2)

32.Ryuichi Ohta, Takuji Katsube, Chiaki Sano: Importance of Inclusive Education in General Medicine Through the Perception of Medical Trainees: A Thematic Analysis. (October 24, 2023) Cureus 15(10): e47585. doi:10.7759/cureus.47585 (IF 1.2) 73

33.Ryuichi Ohta, Chiaki Sano: Factors Associated With Blood Culture Contamination in Rural Hospitals in Japan: A Cross-Sectional Study. (October 30, 2023) Cureus 15(10): e47987. doi:10.7759/cureus.47987 (IF 1.2)

34.Ryuichi Ohta, Chiaki Sano: Enhancing Rural Health Dialogue: The Crucial Role of Reflective Practice in Family Physician Involvement. (November 06, 2023) Cureus 15(11): e48380. doi:10.7759/cureus.48380 (IF 1.2)

35.Kasumi Nishikawa, Mizuki Nitta, Shoma Tanaka, Chiaki Sano, Ryuichi Ohta: Primary Adrenal Insu™ciency in Acute Progressive Systemic Inflammation Accompanied by Latent Tuberculosis: A Case Report. (November 12, 2023) Cureus 15(11): e48695. doi:10.7759/ cureus.48695 (IF 1.2)

36.Taiki Amao, Fusa Koda, Satoshi Ofuji, Chiaki Sano, Ryuichi Ohta: Acute Onset Rheumatoid Vasculitis With Polyarthritis and Erythema: A Case Report. (November 14, 2023) Cureus 15 (11): e48800. doi:10.7759/cureus.48800 (IF 1.2)

37.Ryuichi Ohta, Chiaki Sano: Diagnosis of Rheumatoid Vasculitis From Ischemic Change in Hands: A Case Report. (November 17, 2023) Cureus 15(11): e48962. doi:10.7759/ cureus.48962 (IF 1.2)

38.Ryuichi Ohta, Yumi Naito, Chiaki Sano: Mutually Supportive and Inclusive Societies Driven by Community Social Workers in Japan: A Thematic Analysis of Japanese Comics. Geriatrics 2023, 8(6), 113; https://doi.org/10.3390/geriatrics8060113 (IF 2.3)

39.Koki Kudo, Junya Ohara, Chiaki Sano, Ryuichi Ohta: Salmonella Bacteremia in an Older Patient With No Specific Entry: A Case Report. (November 21, 2023) Cureus 15(11): e49194. doi:10.7759/cureus.49194 (IF 1.2)

40.Riko Herai, Ryuichi Ohta, Chiaki Sano: Reviving Health Osekkai in Rural Japan: Collaborative Strategies of Family Physicians and Medical Students Against Social Isolation. (November 21, 2023) Cureus 15(11): e49195. doi:10.7759/cureus.49195 (IF 1.2)

41.Ryuichi Ohta, Chiaki Sano: Challenges in Diagnosing Psoriatic Arthritis in Primary Care: A Meta-Ethnographic Study. (November 26, 2023) Cureus 15(11): e49443. doi:10.7759/ cureus.49443 (IF 1.2)

42.Takeshi Mori, Fumiko Yamane, Chiaki Sano, Ryuichi Ohta: Gradually Progressive Interstitial Pneumonia Following COVID-19 in an Older Patient: A Case Report. (December 01, 2023) Cureus 15(12): e49807. doi:10.7759/cureus.49807 (IF 1.2)

43.Ryuichi Ohta, Takuji Katsube, Chiaki Sano: Psychological safety and self-regulated learning through near-peer learning for the sustainability of rural community-based medical education: grounded theory approach. Rural and Remote Health 2023, 23: 8488; 74https://doi.org/10.22605/RRH8488 (IF 2.1)

44.Ryoka Chayama, Shiho Amano, Satoshi Ofuji, Chiaki Sano, Ryuichi Ohta: Concurrent Presentation of Pustular Psoriasis and Late-Onset Rheumatoid Arthritis: A Diagnostic Challenge in a Community Hospital Setting. (December 10, 2023) Cureus 15(12): e50278. doi:10.7759/cureus.50278 (IF 1.2)

45.Shiho Amano, Shinichiro Suyama, Nozomi Nishikura, Chiaki Sano, Ryuichi Ohta: Complicated Japanese Spotted Fever With Meningitis in an Older Patient: A Case Report. (December 17, 2023) Cureus 15(12): e50681. doi:10.7759/cureus.50681 (IF 1.2)

46.Ryuichi Ohta, Chiaki Sano: Bacterial Translocation As the Origin of Gram-Negative Rods Bloodstream Infection Among Older Patients in Rural Hospitals: A Cross-Sectional Study. (December 18, 2023) Cureus 15(12): e50706. doi:10.7759/cureus.50706 (IF 1.2)

47.Ryuichi Ohta, Toshihiro Yakabe, Chiaki Sano: Sustainable Involvement of Family Physicians for Improving Help-Seeking Behaviors in Rural Communities: A Thematic Analysis. (December 18, 2023) Cureus 15(12): e50740. doi:10.7759/cureus.50740 (IF 1.2)

48.Ryuichi Ohta, Tomohiro Shigetaka, Chiaki Sano: Migratory Deposition of Calcium Pyrophosphate in an Older Patient With Several Femoral Neck Implant Infection Episodes: A Case Report. (December 20, 2023) Cureus 15(12): e50815. doi:10.7759/cureus.50815 (IF 1.2)

49.Ryuichi Ohta, Chiaki Sano: Enhancing the Comprehensive Integration of General Medicine Education in Rural Japan: A Thematic Analysis. (December 20, 2023) Cureus 15(12): e50874. doi:10.7759/cureus.50874 (IF 1.2)

50.Ryuichi Ohta, Chiaki Sano: Integrating Clinical and Socio-Environmental Approaches in Managing Rheumatoid Arthritis With Social Determinants of Health: A Case Study of an Elderly Patient in Rural Japan. (December 21, 2023) Cureus 15(12): e50915. doi:10.7759/ cureus.50915 (IF 1.2)

51.Ryuichi Ohta, Toshihiro Yakabe, Chiaki Sano: Decision-Making in the Admission of Older Patients: A Thematic Analysis From Multiple-Stakeholder Perspectives. (January 09, 2024) Cureus 16(1): e51966. doi:10.7759/cureus.51966 (IF 1.2)

52.Ryuichi Ohta, Toshihiro Yakabe, Chiaki Sano: Addressing health challenges in rural Japan: a thematic analysis of social isolation and community solutions. BMC Primary Care 2024, 25, 26; https://doi.org/10.1186/s12875-024-02266-y

53.Shiho Amano, Ryuichi Ohta, Chiaki Sano: Relationship between Anemia and Readmission among Older Patients in Rural Community Hospitals: A Retrospective Cohort Study. Journal of clinical medicine 2024, 13(2), 539; https://doi.org/10.3390/jcm13020539 (IF 3.9)

54.Ryuichi Ohta, Junji Iwasa, Chiaki Sano: Atlantoaxial Subluxation as the Initial Presentation of 75 Rheumatoid Arthritis: A Case Report. (January 19, 2024) Cureus 16(1): e52579. doi:10.7759/ cureus.52579 (IF 1.2)

55.Ryoko Yamauchi, Ryuichi Ohta, Chiaki Sano: Reconsidering the Role of Nurse Practitioners in Japan: What Direction Should Japanese Nurse Practitioners Aim for?. (January 25, 2024) Cureus 16(1): e52936. doi:10.7759/cureus.52936 (IF 1.2)

56.Ryuichi Ohta, Tsuyoshi Mishiro, Yuta Horinishi, Chiaki Sano: Multiple Ulcers in the Ileum and Lymphadenopathy Following the Usage of Methotrexate in a Patient With Rheumatoid Arthritis: A Case Report. (February 01, 2024) Cureus 16(2): e53406. doi:10.7759/ cureus.53406 (IF 1.2)

57.Ryuichi Ohta, Miyuki Yawata, Chiaki Sano: E—ectiveness of Doctor Clerks Supporting Physiciansʼ Work in Japan: A Systematic Review. (February 01, 2024) Cureus 16(2): e53407. doi:10.7759/cureus.53407 (IF 1.2)

58.Ryuichi Ohta, Chiaki Sano: Challenges Faced by Medical Trainees in Outpatient Management Education in Acute Care Hospitals: A Thematic Analysis. (February 07, 2024) Cureus 16(2): e53800. doi:10.7759/cureus.53800 (IF 1.2)

59.Hitomi Tsuchida, Shiho Amano, Chiaki Sano, Ryuichi Ohta: Type 2 Myocardial Infarction Caused by Orthostatic Hypotension With Post-transcatheter Aortic Valve Implantation: A Case Report. (February 09, 2024) Cureus 16(2): e53921. doi:10.7759/cureus.53921 (IF 1.2)

60.Yutaka Tatano, Toshiaki Shimizu, Chiaki Sano, Haruaki Tomioka: Roles of autophagy in killing of mycobacterial pathogens by host macrophages – E—ects of some medicinal plants. European Journal of Microbiology and Immunology 2024, 14, 1; https://doi.org/10.1556/ 1886.2023.00062 (IF 2.2)

61.Ryuichi Ohta, Taichi Fujimori, Chiaki Sano: Eosinophilic Granulomatosis With Polyangiitis Gradually Worsening With Consecutive Pregnancies: A Case Report. (February 24, 2024) Cureus 16(2): e54832. doi:10.7759/cureus.54832 (IF 1.2)

62.Ryuichi Ohta, Toshihiro Yakabe, Chiaki Sano: Frailty Syndrome in Rural Communities: A Narrative Review and Interviews With Rural Individuals. (February 27, 2024) Cureus 16(2): e55088. doi:10.7759/cureus.55088 (IF 1.2) 76