Hiroshi Ohta

4.8k total citations
249 papers, 3.4k citations indexed

About

Hiroshi Ohta is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Epidemiology. According to data from OpenAlex, Hiroshi Ohta has authored 249 papers receiving a total of 3.4k indexed citations (citations by other indexed papers that have themselves been cited), including 54 papers in Surgery, 51 papers in Pulmonary and Respiratory Medicine and 39 papers in Epidemiology. Recurrent topics in Hiroshi Ohta's work include Veterinary Oncology Research (22 papers), Merger and Competition Analysis (17 papers) and Cardiovascular Conditions and Treatments (17 papers). Hiroshi Ohta is often cited by papers focused on Veterinary Oncology Research (22 papers), Merger and Competition Analysis (17 papers) and Cardiovascular Conditions and Treatments (17 papers). Hiroshi Ohta collaborates with scholars based in Japan, United States and Australia. Hiroshi Ohta's co-authors include Melvin L. Greenhut, Mitsuyoshi Takiguchi, Noboru Sasaki, Kensuke Nakamura, Keitaro Morishita, Tatsuyuki Osuga, Takahiro Tsutsumimoto, Hiromichi Misawa, Nozomu Yokoyama and Masahiro Murakami and has published in prestigious journals such as PLoS ONE, American Economic Review and Econometrica.

In The Last Decade

Hiroshi Ohta

234 papers receiving 3.2k citations

Peers

Hiroshi Ohta

SURGE

PRM

RNMI

Anders Gustafsson Sweden

Lijun Xia United States

Wei Pan China

Yumei Cao United States

Hidenori Takahashi Japan

Rui-Ming Liu United States

Zhi Li China

Hongda Chen China

Jian Huang China

Anders Gustafsson Sweden

Hiroshi Ohta

270 ×0.4

SURGE

423 ×0.7

PRM

131 ×0.2

727 ×1.6

599 ×1.6

RNMI

Citations per year, relative to Hiroshi Ohta Hiroshi Ohta (= 1×) peers Anders Gustafsson

Countries citing papers authored by Hiroshi Ohta

Since Specialization

Citations

This map shows the geographic impact of Hiroshi Ohta'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 Hiroshi Ohta with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hiroshi Ohta more than expected).

Fields of papers citing papers by Hiroshi Ohta

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hiroshi Ohta. 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 Hiroshi Ohta. The network helps show where Hiroshi Ohta may publish in the future.

Co-authorship network of co-authors of Hiroshi Ohta

This figure shows the co-authorship network connecting the top 25 collaborators of Hiroshi Ohta. A scholar is included among the top collaborators of Hiroshi Ohta 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 Hiroshi Ohta. Hiroshi Ohta is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Oishi, Naoki, et al.. (2025). Prospective Estimation of the Prevalence of Thromboembolism in Dogs With Inflammatory Protein-Losing Enteropathy. Journal of Veterinary Internal Medicine. 39(3). e70098–e70098.

Lim, Sue Yee, et al.. (2024). Correction: Management of acute-onset pancreatitis in dogs: a Narrative Review. Journal of the American Veterinary Medical Association. 262(9). 1241–1241.

Tamura, Masahiro, Hiroshi Ohta, Tatsuyuki Osuga, & Mitsuyoshi Takiguchi. (2023). Effectiveness of 2-dimensional shear wave elastography for noninvasive and reliable estimation of right atrial pressure in dogs with induced volume overload. Journal of Veterinary Internal Medicine. 37(3). 866–874. 2 indexed citations

Tamura, Masahiro, Hiroshi Ohta, Tatsuyuki Osuga, et al.. (2021). Extrahepatic biliary obstruction can interfere with hepatic fibrosis prediction using two‐dimensional shear wave elastography in dogs. Veterinary Radiology & Ultrasound. 62(4). 483–489. 3 indexed citations

Nisa, Khoirun, Sue Yee Lim, Tatsuyuki Osuga, et al.. (2019). Evaluation of duodenal perfusion by contrast-enhanced ultrasonography in dogs with chronic inflammatory enteropathy and intestinal lymphoma. Journal of Veterinary Internal Medicine. 33(2). 559–568. 11 indexed citations

Akiyama, Satoshi, Hiroshi Ohta, Toshihiro Tsukui, et al.. (2019). Th17 cells increase during maturation in peripheral blood of healthy dogs. Veterinary Immunology and Immunopathology. 209. 17–21. 4 indexed citations

Tamura, Masahiro, Hiroshi Ohta, Tatsuyuki Osuga, et al.. (2019). Usefulness of noninvasive shear wave elastography for the assessment of hepatic fibrosis in dogs with hepatic disease. Journal of Veterinary Internal Medicine. 33(5). 2067–2074. 18 indexed citations

Ohta, Hiroshi, Noriyuki Nagata, Masahiro Tamura, et al.. (2019). Epidemiology of massive hepatocellular carcinoma in dogs: A 4-year retrospective study. The Veterinary Journal. 248. 74–78. 11 indexed citations

Ohta, Hiroshi, Masahiro Tamura, Noriyuki Nagata, et al.. (2019). Plasma-free amino acid profiles in dogs with hepatocellular carcinoma. Journal of Veterinary Internal Medicine. 33(4). 1653–1659. 12 indexed citations

10.

Tamura, Masahiro, Hiroshi Ohta, Khoirun Nisa, et al.. (2018). Contrast‐enhanced ultrasonography is a feasible technique for quantifying hepatic microvascular perfusion in dogs with extrahepatic congenital portosystemic shunts. Veterinary Radiology & Ultrasound. 60(2). 192–200. 5 indexed citations

11.

Morishita, Keitaro, Satoshi Takagi, Tatsuyuki Osuga, et al.. (2017). Washout Ratio in the Hepatic Vein Measured by Contrast-Enhanced Ultrasonography to Distinguish Between Inflammatory and Noninflammatory Hepatic Disorders in Dogs. Journal of Veterinary Internal Medicine. 31(3). 770–777. 7 indexed citations

12.

Ohta, Hiroshi, et al.. (2015). 23274 Research on Design Input Ground Motion and Design Method of Building for Uemachi Fault Earthquake : Part13: Analysis of Reinforced Concrete Structure Building by Fishbone-model. 2015. 547–548. 1 indexed citations

13.

Wada, Koji, et al.. (2013). Hepatitis Screening in Japanese Individuals of Working Age and Prejudice against Infected Persons in the Workplace. Journal of Occupational Health. 55(5). 392–397. 9 indexed citations

14.

Adachi, Wataru, et al.. (2011). Anorectal Lesions Detected by Retroflex Colonoscopy in Healthy Adults. Nihon Daicho Komonbyo Gakkai Zasshi. 64(7). 455–461. 1 indexed citations

15.

Kotani, Takayuki, et al.. (2005). Exponentially Weighted Moving Average Chart for High-Yield Processes. Industrial Engineering & Management Systems. 4(1). 75–81. 11 indexed citations

16.

Murata, Noboru, Hiroshi Ohta, & Kensuke Suzuki. (1992). [An adult case of anomalous origin of the left coronary artery from the pulmonary artery with the coronary artery-bronchial artery anastomosis].. PubMed. 40(11). 2113–9. 2 indexed citations

17.

Greenhut, Melvin L. & Hiroshi Ohta. (1979). Monopoly Output under Alternative Spatial Pricing Techniques: Reply. American Economic Review. 69(4). 680–681. 45 indexed citations

18.

Greenhut, Melvin L. & Hiroshi Ohta. (1979). Vertical Integration of Successive Oligopolists. American Economic Review. 69(1). 137–141. 103 indexed citations

19.

Ohta, Hiroshi. (1974). A case of multiple myeloma terminating with acute myelomonocytic leukemia after long-term melphalan therapy. 37(1). 49–57. 1 indexed citations

20.

Ohta, Hiroshi. (1971). Serum,urine and leukocyte muramidase(lysozyme)activity in monocytic leukemia and other hematologic malignancies. 34(4). 498–512. 1 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.

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