Hiroshi Okamura

4.5k total citations · 2 hit papers
222 papers, 3.2k citations indexed

About

Hiroshi Okamura is a scholar working on Hematology, Pulmonary and Respiratory Medicine and Surgery. According to data from OpenAlex, Hiroshi Okamura has authored 222 papers receiving a total of 3.2k indexed citations (citations by other indexed papers that have themselves been cited), including 48 papers in Hematology, 39 papers in Pulmonary and Respiratory Medicine and 37 papers in Surgery. Recurrent topics in Hiroshi Okamura's work include Hematopoietic Stem Cell Transplantation (29 papers), Nuclear physics research studies (26 papers) and Voice and Speech Disorders (22 papers). Hiroshi Okamura is often cited by papers focused on Hematopoietic Stem Cell Transplantation (29 papers), Nuclear physics research studies (26 papers) and Voice and Speech Disorders (22 papers). Hiroshi Okamura collaborates with scholars based in Japan, United States and Spain. Hiroshi Okamura's co-authors include Nobuhiko Isshiki, Hiroshi Morita, Michiaki Hiramoto, Takeshi Ishikawa, Eiji Yumoto, Kichiro Hiida, T. Ohta, Yumi Sasaki, Toshiei Kimura and Kouji Hattori and has published in prestigious journals such as Circulation, SHILAP Revista de lepidopterología and Blood.

In The Last Decade

Hiroshi Okamura

193 papers receiving 3.0k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Cloning of the cDNA for human IFN-γ-inducing factor, expression in Escherichia coli, and studies on the biologic activities of the protein

1996 563 citations Hiroshi Okamura et al. profile →
Thyroplasty as a New Phonosurgical Technique

1974 485 citations Hiroshi Okamura et al. profile →

Peers

Countries citing papers authored by Hiroshi Okamura

Since Specialization

Citations

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

Fields of papers citing papers by Hiroshi Okamura

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hiroshi Okamura

This figure shows the co-authorship network connecting the top 25 collaborators of Hiroshi Okamura. A scholar is included among the top collaborators of Hiroshi Okamura 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 Okamura. Hiroshi Okamura 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

#	Work	Indexed citations
1	Vedolizumab for prevention of lower-GI acute GVHD in the Japanese subgroup analysis of the phase 3 GRAPHITE study 2025 ·International Journal of Hematology ·Tatsunori Goto, Hiroshi Okamura, Takashi Ikeda, Yasuo Mori, Souichi Shiratori, Shin‐ichiro Fujiwara, (unknown), Ken‐ichi Matsuoka, Yuta Katayama, Yi‐Bin Chen, Yngvar Fløisand, Guillermo Rossiter, Johan Jansson, (unknown), Takanori Teshima	1
2	Successful treatment with mesenchymal stem cells for steroid-refractory late-onset idiopathic pneumonia syndrome following allogeneic hematopoietic cell transplantation 2024 ·Transplant Immunology ·(unknown), Hideo Koh, (unknown), (unknown), (unknown), (unknown), Hiroshi Okamura, Mitsutaka Nishimoto, Yasuhiro Nakashima, Masayuki Hino, Hirohisa Nakamae	0
3	Dynamic Relapse Prediction by Peripheral Blood WT1mRNA after Allogeneic Hematopoietic Cell Transplantation for Myeloid Neoplasms 2024 ·Transplantation and Cellular Therapy ·(unknown), Hiroshi Okamura, Isao Yokota, (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), Mitsutaka Nishimoto, Asao Hirose, Mika Nakamae, Yasuhiro Nakashima, Hideo Koh, Masayuki Hino, Hirohisa Nakamae	1
4	Invasive fungal infection caused by Blastobotrys mokoenaii in an immunocompromised patient with acute myeloid leukemia: A case report 2023 ·Journal of Infection and Chemotherapy ·(unknown), (unknown), (unknown), (unknown), Makoto Niki, (unknown), (unknown), (unknown), (unknown), (unknown), Hiroshi Okamura, Mitsutaka Nishimoto, Yasuhiro Nakashima, Mika Nakamae, Hiroshi Kakeya, Kenichi Kohashi, Masayuki Hino, Hirohisa Nakamae	1
5	A Prospective Study of an HLA-Haploidentical Peripheral Blood Stem Cell Transplantation Regimen Based on Modification of the Dose of Posttransplant Cyclophosphamide for Poor Prognosis or Refractory Hematological Malignancies 2022 ·Cell Transplantation ·Hirohisa Nakamae, Hiroshi Okamura, Asao Hirose, Hideo Koh, Yasuhiro Nakashima, Mika Nakamae, Mitsutaka Nishimoto, (unknown), (unknown), Naonori Harada, (unknown), Masayuki Hino	3
6	Increasing numbers of CD19 + CD24highCD38high regulatory B cells and pre-germinal center B cells reflect activated autoimmunity and predict future treatment response in patients with untreated immune thrombocytopenia 2021 ·International Journal of Hematology ·Tetsuya Hayashi, Hirohisa Nakamae, Shin’ichi Takeda, Yasuhiro Nakashima, Hideo Koh, Mitsutaka Nishimoto, Hiroshi Okamura, (unknown), (unknown), (unknown), Mika Nakamae, Asao Hirose, Masayuki Hino	4
7	A phase II study of post-transplant cyclophosphamide combined with tacrolimus for GVHD prophylaxis after HLA-matched related/unrelated allogeneic hematopoietic stem cell transplantation 2021 ·International Journal of Hematology ·Hirohisa Nakamae, Takahiko Nakane, Hiroshi Okamura, Hideo Koh, Yasuhiro Nakashima, Asao Hirose, Mika Nakamae, Mitsutaka Nishimoto, (unknown), (unknown), Naonori Harada, (unknown), Masayuki Hino	8
8	Interactive Web Application for Plotting Personalized Prognosis Prediction Curves in Allogeneic Hematopoietic Cell Transplantation Using Machine Learning 2020 ·Transplantation ·Hiroshi Okamura, Mika Nakamae, (unknown), (unknown), Yasuhiro Nakashima, Hideo Koh, Takahiko Nakane, Asao Hirose, Masayuki Hino, Hirohisa Nakamae	7
9	A prospective observational study of immune reconstitution following transplantation with post‐transplant reduced‐dose cyclophosphamide from HLA ‐haploidentical donors 2019 ·Transplant International ·Hirohisa Nakamae, Kazuki Fujii, (unknown), Hiroshi Okamura, Takahiko Nakane, Hideo Koh, Yasuhiro Nakashima, Mika Nakamae, Asao Hirose, Takanori Teshima, Masayuki Hino	28
10	Pretransplant serum beta‐2 microglobulin level is a potential novel prognostic marker of overall survival after allogeneic hematopoietic cell transplantation – a retrospective observational study 2019 ·Transplant International ·Naonori Harada, Takahiko Nakane, Mika Nakamae, Yoshinori Hashimoto, Hiroshi Okamura, (unknown), Mitsutaka Nishimoto, Asao Hirose, Yasuhiro Nakashima, Hideo Koh, Masayuki Hino, Hirohisa Nakamae	1
11	Treatment of Cancer of the Tongue. 1992 ·Practica Oto-Rhino-Laryngologica ·Eiji Yumoto, Hiroshi Okamura	1
12	Traveling wave in vocal fold vibration. 1991 ·Practica Oto-Rhino-Laryngologica ·(unknown), (unknown), Eiji Yumoto, Hiroshi Okamura	1
13	Diagnosis and surgical tretment of pharyngeal dysphagia. 1991 ·Practica Oto-Rhino-Laryngologica ·Hiroshi Okamura, Toshihiro Mori, (unknown)	0
14	Meningoencephalocele in Frontal Sinus with Cerebrospinal Fluid Rhinorrhea. 1991 ·Practica Oto-Rhino-Laryngologica ·(unknown), Eiji Yumoto, Hiroshi Okamura, Naoaki Yanagihara	1
15	Conduction velocity of swallowing pressures in the pharynx and the cervical esophagus. 1989 ·Practica Oto-Rhino-Laryngologica ·Toshihiro Mori, Hiroshi Okamura, (unknown)	1
16	Management of the facial nerve in parotid surgery. 1987 ·Practica Oto-Rhino-Laryngologica ·Hiroshi Okamura, Naoaki Yanagihara	3
17	Carcinoma of the external auditory canal - Report of eight cases. 1986 ·Practica Oto-Rhino-Laryngologica ·Eiji Yumoto, Hiroshi Okamura, Naoaki Yanagihara	0
18	419. Ultrastructural Study on the Development of the Cervical Epithelium in the Human Fetal Uterus 1985 ·日本産科婦人科學會雜誌 ·Ikuo Konishi, Shunsaku Fujii, Hiroshi Okamura, Hideharu Kanzaki, Akira Takenaka, Taketoshi Mori	1
19	1984 ·Practica Oto-Rhino-Laryngologica ·(unknown), (unknown), Hiroshi Okamura, Takaaki Ohmori	1
20	Nine cases of facial nerve neurilemmoma. 1984 ·Practica Oto-Rhino-Laryngologica ·Eiji Yumoto, Naoaki Yanagihara, Hiroshi Okamura	1

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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