Kojiro Otsuka

3.0k total citations
81 papers, 1.9k citations indexed

About

Kojiro Otsuka is a scholar working on Pulmonary and Respiratory Medicine, Oncology and Physiology. According to data from OpenAlex, Kojiro Otsuka has authored 81 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 64 papers in Pulmonary and Respiratory Medicine, 26 papers in Oncology and 22 papers in Physiology. Recurrent topics in Kojiro Otsuka's work include Lung Cancer Treatments and Mutations (27 papers), Asthma and respiratory diseases (19 papers) and Lung Cancer Research Studies (16 papers). Kojiro Otsuka is often cited by papers focused on Lung Cancer Treatments and Mutations (27 papers), Asthma and respiratory diseases (19 papers) and Lung Cancer Research Studies (16 papers). Kojiro Otsuka collaborates with scholars based in Japan, United States and Australia. Kojiro Otsuka's co-authors include Keisuke Tomii, Kazuma Nagata, Atsushi Nakagawa, Daichi Fujimoto, Yuki Sato, Michiaki Mishima, Takeshi Morimoto, Hisako Matsumoto, Akio Niimi and Tsuyoshi Oguma and has published in prestigious journals such as Journal of Clinical Oncology, PLoS ONE and Scientific Reports.

In The Last Decade

Kojiro Otsuka

80 papers receiving 1.9k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Kojiro Otsuka Japan 28 1.4k 725 662 184 178 81 1.9k
Elisabetta Balestro Italy 23 1.2k 0.9× 237 0.3× 421 0.6× 147 0.8× 343 1.9× 99 2.0k
Miriana d’Alessandro Italy 24 1.1k 0.8× 130 0.2× 617 0.9× 192 1.0× 268 1.5× 156 1.9k
Christian Schulz Germany 17 612 0.4× 305 0.4× 180 0.3× 82 0.4× 132 0.7× 61 1.0k
Sho Goya Japan 18 447 0.3× 186 0.3× 375 0.6× 121 0.7× 223 1.3× 44 1.4k
Hironao Hozumi Japan 28 1.6k 1.2× 217 0.3× 683 1.0× 185 1.0× 238 1.3× 150 2.5k
Rosa Metella Refini Italy 26 1.2k 0.9× 95 0.1× 854 1.3× 174 0.9× 189 1.1× 72 1.8k
Giuseppina Bertorelli Italy 22 1.3k 0.9× 72 0.1× 1.3k 1.9× 155 0.8× 140 0.8× 69 1.9k
Takashi Ogura Japan 32 2.9k 2.2× 181 0.2× 1.1k 1.6× 364 2.0× 247 1.4× 121 3.6k
Andrew G. Nicholson United Kingdom 12 1.1k 0.8× 74 0.1× 1.1k 1.6× 170 0.9× 269 1.5× 21 1.7k
Alberto Pesci Italy 21 2.0k 1.5× 66 0.1× 1.2k 1.8× 163 0.9× 168 0.9× 51 2.6k

Countries citing papers authored by Kojiro Otsuka

Since Specialization
Citations

This map shows the geographic impact of Kojiro Otsuka's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Kojiro Otsuka with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kojiro Otsuka more than expected).

Fields of papers citing papers by Kojiro Otsuka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kojiro Otsuka. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Kojiro Otsuka. The network helps show where Kojiro Otsuka may publish in the future.

Co-authorship network of co-authors of Kojiro Otsuka

This figure shows the co-authorship network connecting the top 25 collaborators of Kojiro Otsuka. A scholar is included among the top collaborators of Kojiro Otsuka based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Kojiro Otsuka. Kojiro Otsuka is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
2.
Hata, Akito, Yuki Sato, Satoru Fujiwara, et al.. (2023). MO2-7 A multicenter prospective observational study of pre-existing autoantibodies in patients with small-cell lung cancer treated with ICI. Annals of Oncology. 34. S1396–S1396. 1 indexed citations
3.
Takahashi, Yusuke, Kazuma Nagata, Takeshi Morimoto, et al.. (2020). The validity and reliability of four-meter gait speed test for stable interstitial lung disease patients: the prospective study. Journal of Thoracic Disease. 12(4). 1296–1304. 9 indexed citations
4.
Ito, Jiro, Kazuma Nagata, Takeshi Morimoto, et al.. (2019). Respiratory management of acute exacerbation of interstitial pneumonia using high-flow nasal cannula oxygen therapy: a single center cohort study. Journal of Thoracic Disease. 11(1). 103–112. 7 indexed citations
5.
6.
Fujimoto, Daichi, Keiichiro Uehara, Yuki Sato, et al.. (2017). Alteration of PD-L1 expression and its prognostic impact after concurrent chemoradiation therapy in non-small cell lung cancer patients. Scientific Reports. 7(1). 11373–11373. 68 indexed citations
7.
Matsumoto, Takeshi, Kojiro Otsuka, Yukihiro Imai, & Keisuke Tomii. (2016). Bacterial Pericarditis Accompanied by Sudden Cardiac Tamponade After Transbronchial Needle Aspiration Cytology. Journal of Bronchology & Interventional Pulmonology. 23(2). 155–159. 2 indexed citations
8.
Nakaji, Hitoshi, Akio Niimi, Hirofumi Matsuoka, et al.. (2016). Airway remodeling associated with cough hypersensitivity as a consequence of persistent cough: An experimental study. Respiratory Investigation. 54(6). 419–427. 7 indexed citations
9.
Sato, Yuki, Daichi Fujimoto, Keiichiro Uehara, et al.. (2016). The prognostic value of serum CA 19-9 for patients with advanced lung adenocarcinoma. BMC Cancer. 16(1). 890–890. 20 indexed citations
10.
Otoshi, Takehiro, Yuki Kataoka, Atsushi Nakagawa, Kojiro Otsuka, & Keisuke Tomii. (2016). Clinical Features and Outcomes of Diffuse Alveolar Hemorrhage During Antithrombotic Therapy: A Retrospective Cohort Study. Lung. 194(3). 475–481. 6 indexed citations
11.
Matsumoto, Takeshi, Keisuke Tomii, Ryo Tachikawa, et al.. (2015). Role of sedation for agitated patients undergoing noninvasive ventilation: clinical practice in a tertiary referral hospital. BMC Pulmonary Medicine. 15(1). 71–71. 17 indexed citations
12.
Oguma, Tsuyoshi, Akio Niimi, Toyohiro Hirai, et al.. (2015). Assessment of Small Airways with Computed Tomography: Mosaic Attenuation or Lung Density?. Respiration. 89(6). 539–549. 7 indexed citations
13.
Matsumoto, Takeshi, Kojiro Otsuka, & Keisuke Tomii. (2015). Mycobacterium fortuitum thoracic empyema: A case report and review of the literature. Journal of Infection and Chemotherapy. 21(10). 747–750. 11 indexed citations
14.
Fujimoto, Daichi, Takeshi Morimoto, Ryoji Kato, et al.. (2014). Analysis of advanced lung cancer patients diagnosed following emergency admission. European Respiratory Journal. 45(4). 1098–1107. 10 indexed citations
15.
Takeshita, Jumpei, Katsuhiro Masago, Shiro Fujita, et al.. (2014). Weekly administration of paclitaxel and carboplatin with concurrent thoracic radiation in previously untreated elderly patients with locally advanced non-small-cell lung cancer: A case series of 20 patients. Molecular and Clinical Oncology. 2(3). 454–460. 1 indexed citations
16.
Fujimoto, Daichi, Asako Doi, Takuya Naito, et al.. (2013). Comparison of two transport systems available in Japan (TERUMO kenkiporter II and BBL Port-A-Cul) for maintenance of aerobic and anaerobic bacteria. Journal of Infection and Chemotherapy. 20(1). 26–29. 2 indexed citations
17.
Matsumoto, Hisako, Akio Niimi, Hideki Inoue, et al.. (2012). Cough Triggers and Their Pathophysiology in Patients with Prolonged or Chronic Cough. Allergology International. 61(1). 123–132. 44 indexed citations
18.
Otsuka, Kojiro, Akio Niimi, Hisako Matsumoto, et al.. (2011). Plasma Substance P Levels in Patients with Persistent Cough. Respiration. 82(5). 431–438. 29 indexed citations
19.
Otsuka, Kojiro, Hisako Matsumoto, Akio Niimi, et al.. (2011). Sputum YKL-40 Levels and Pathophysiology of Asthma and Chronic Obstructive Pulmonary Disease. Respiration. 83(6). 507–519. 40 indexed citations
20.
Matsuoka, Hirofumi, Akio Niimi, Hisako Matsumoto, et al.. (2009). Specific IgE Response to Trichophyton and Asthma Severity. CHEST Journal. 135(4). 898–903. 40 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Elisabetta Balestro Breakdown of academic impact, for papers by Miriana d’Alessandro Breakdown of academic impact, for papers by Christian Schulz Breakdown of academic impact, for papers by Sho Goya Breakdown of academic impact, for papers by Hironao Hozumi Breakdown of academic impact, for papers by Rosa Metella Refini Breakdown of academic impact, for papers by Giuseppina Bertorelli Breakdown of academic impact, for papers by Takashi Ogura Breakdown of academic impact, for papers by Andrew G. Nicholson Breakdown of academic impact, for papers by Alberto Pesci
Rankless by CCL
2026