J Okamura

1.9k citations

49 papers · 1.3k indexed · h-index 20

Impact in

Hematology top 2%
- Acute Myeloid Leukemia Research
- Hematopoietic Stem Cell Transplantation
Hepatology top 5%
- Hepatocellular Carcinoma Treatment and Prognosis

Papers in

Hematology 17
- Hematopoietic Stem Cell Transplantation 9
- Acute Myeloid Leukemia Research 8
- Chronic Myeloid Leukemia Treatments 4
Hepatology 8
- Hepatocellular Carcinoma Treatment and Prognosis 7

Co-authors: Masami Sakurai Hajime Nakamura C Kuroda H. Yoshioka Satoshi Hori Teruji Tanaka Yoshihisa Nagatoshi Seiji Kojima
Journals: Bone Marrow Transplantation (8 papers)Leukemia (6 papers)Journal of Pediatric Surgery (4 papers)The Journal of Laryngology & Otology (3 papers)Blood (3 papers)
Partner nations: Japan United Kingdom United States

In The Last Decade

J Okamura

49 papers receiving 1.3k citations

Peers

Countries citing papers authored by J Okamura

Since Specialization

Citations

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

Fields of papers citing papers by J Okamura

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network

The 25 scholars most cited alongside J Okamura, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with J Okamura Line = papers co-authored together J Okamura links everyone, so they are left out of the graph.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work
1	Relevance of level IIb neck dissection in patients with papillary thyroid carcinoma The Journal of Laryngology & Otology ·Seiji Hosokawa, Goro Takahashi, J Okamura, Atsushi Imai, Daiki Mochizuki, Ryuji Ishikawa, Yoshinori Takizawa, Kiyoshi Misawa, Kazuya Shinmura, Hiroyuki Mineta	2021	1
2	Survival outcomes after surgical resection of pulmonary metastases of head and neck tumours The Journal of Laryngology & Otology ·Seiji Hosokawa, Kazuhito Funai, Madeshwaran Chitra Rangasamy, Goro Takahashi, J Okamura, Yoshinori Takizawa, MU Shao-yin, Hiroyuki Mineta	2016	6
3	Protracted dormancy of pre-leukemic stem cells Leukemia ·Anthony M. Ford, Marcela Braga Mansur, Caroline L. Furness, Frederik W. van Delft, J Okamura, Takayuki Suzuki, Hirofumi Kobayashi, Yasuhiko Kaneko, Mel Greaves	2015	19
4	Clinical study of mucosa-associated lymphoid tissue lymphomas of the head and neck The Journal of Laryngology & Otology ·Seiji Hosokawa, J Okamura, Yoshinori Takizawa, Gaku Takahashi, Kumiko Hosokawa, Hiroyuki Mineta	2011	1
5	Long-term outcomes after hematopoietic SCT for adult T-cell leukemia/lymphoma: results of prospective trials Bone Marrow Transplantation ·Ilseung Choi, Ryuji Tanosaki, Naokuni Uike, Atae Utsunomiya, Masao Tomonaga, M Harada, Takeharu Yamanaka, Mari Kannagi, J Okamura, (unknown)	2010	50
6	CD34+CD38+CD19+ as well as CD34+CD38−CD19+ cells are leukemia-initiating cells with self-renewal capacity in human B-precursor ALL Leukemia ·Yuan Kong, Shuro Yoshida, Yoriko Saito, Toshifumi Doi, Yoshihisa Nagatoshi, Mitsuhiro Fukata, Noritaka Saito, Gökçe GARİP, Chika Iwamoto, J Okamura, K Y Liu, Xiao‐Jun Huang, Ma. del Rosario Mota Cienfuegos, Leonard D. Shultz, M Harada, Fumihiko Ishikawa	2008	117
7	Low-dose MTX for the treatment of acute and chronic graft-versus-host disease in children Bone Marrow Transplantation ·Jiro Inagaki, Yoshihisa Nagatoshi, Masaru Hatano, Naoei Isomura, 傅宏波, J Okamura	2007	26
8	Clinical Characteristics and the Prognosis of Rhabdomyosarcoma - A Report from the Study Group for Pediatric Solid Malignant Tumors in the Kyushu Area, Japan European Journal of Pediatric Surgery ·Sachiyo Suita, Mario A. Londoño Villegas, Hideo Takamatsu, H Mizote, Akira Nagasaki, Yukihiro Inomata, Toshiro Hara, J Okamura, S Miyazaki, Kiyoshi Kawakami, Haruhiko Eguchi, Masazumi Tsuneyoshi, (unknown)	2005	5
9	Allogeneic hematopoietic stem cell transplantation provides sustained long-term survival for patients with adult T-cell leukemia/lymphoma Leukemia ·Mujahid Aljohani, Yoshitsugu Miyazaki, Sumihisa Honda, Fumio Kawano, Yukiyoshi Moriuchi, M Masuda, Ryuji Tanosaki, Atae Utsunomiya, Naokuni Uike, Shuro Yoshida, J Okamura, Masao Tomonaga	2005	125
10	Allogeneic stem-cell transplantation with reduced conditioning intensity as a novel immunotherapy and antiviral therapy for adult T-cell leukemia/lymphoma Blood ·J Okamura	2005	119
11	Improved survival outcome for hepatoblastoma based on an optimal chemotherapeutic regimen—a report from the study group for pediatric solid malignant tumors in the Kyushu area Journal of Pediatric Surgery ·Sachiyo Suita, Tatsuro Tajiri, Hideo Takamatsu, H Mizote, Akira Nagasaki, Yukihiro Inomata, Toshiro Hara, J Okamura, S Miyazaki, Kiyoshi Kawakami, Haruhiko Eguchi, Masazumi Tsuneyoshi	2004	20
12	Methotrexate vs Cyclosporin A as a single agent for graft-versus-host disease prophylaxis in pediatric patients with hematological malignancies undergoing allogeneic bone marrow transplantation from HLA-identical siblings: a single-center analysis in Japan Bone Marrow Transplantation ·Maria Antonieta Tagimacruz, Yoshihisa Nagatoshi, Yoshifumi Kawano, J Okamura	2003	8
13	Lack of clinical utility of minimal residual disease detection in allogeneic stem cell recipients with childhood acute lymphoblastic leukemia: multi-institutional collaborative study in Japan Bone Marrow Transplantation ·Shinsaku Imashuku, Kiminori Terui, T Matsuyama, Keiko Asami, Shigeru Tsuchiya, Eiichi Ishii, K Kawa, Yoshiyuki Kosaka, Haruhiko Eguchi, Masahiro Tsuchida, Koichi Ikuta, Shingo Kato, Satoshi Koizumi, J Okamura, Akira Morimoto, Shigeyoshi Hibi, Kenji Hamaoka, (unknown)	2003	14
14	Allogeneic hematopoietic stem cell transplantation for 27 children with juvenile myelomonocytic leukemia diagnosed based on the criteria of the International JMML Working Group Leukemia ·Atsushi Manabe, J Okamura, Keiko Yumura‐Yagi, Yuichi Akiyama, Masahiro Sako, Hiroshi Uchiyama, Seiji Kojima, K Koike, Takeshi Saito, Tatsutoshi Nakahata	2002	73
15	Myelodysplastic syndrome in childhood: a retrospective study of 189 patients in Japan Leukemia ·Hideki Sasaki, Atsushi Manabe, Seiji Kojima, Masahiro Tsuchida, Y Hayashi, Koichi Ikuta, J Okamura, K Koike, Akira Ohara, Eiichi Ishii, Yoshihiro Komada, Shigeyoshi Hibi, Tatsutoshi Nakahata	2001	59
16	Improved survival for patients with advanced neuroblastoma after high-dose combined chemotherapy based in part on N-myc amplification Journal of Pediatric Surgery ·Sachiyo Suita, Tatsuro Tajiri, Yasunori Sera, Hideo Takamatsu, H Mizote, Akira Nagasaki, Belmont Town Representatives, Toshiro Hara, J Okamura, S Miyazaki, Angelina Fudala, Kiyoshi Kawakami, Haruhiko Eguchi, Masazumi Tsuneyoshi	2000	7
17	Thymus-independent expansion of T lymphocytes in children after allogeneic bone marrow transplantation Bone Marrow Transplantation ·K. Honda, Hidetoshi Takada, Yoshihisa Nagatoshi, Kohei Akazawa, Shouichi Ohga, Eiichi Ishii, J Okamura, Toshiro Hara	2000	21
18	An effective chemotherapeutic regimen for acute myeloid leukemia and myelodysplastic syndrome in children with Down's syndrome Leukemia ·Seiji Kojima, Masahiro Sako, Koji Kato, Gaku Hosoi, Takahiro Sato, Akira Ohara, K Koike, M.G.R. ter Veld, Shin‐Ichiro Nishimura, Yuichi Akiyama, Tetsushi Yoshikawa, Eiichi Ishii, J Okamura, Makoto Yazaki, Y Hayashi, Mariko Eguchi, Ichiro Tsukimoto, Kazuhiro Ueda	2000	52
19	Mass screening for neuroblastoma at 6 months of age: Difficult to justify Journal of Pediatric Surgery ·Sachiyo Suita, Tatsuro Tajiri, Kohei Akazawa, Yasunori Sera, Hideo Takamatsu, H Mizote, بوشلقية رزيقة, Belmont Town Representatives, Toshiro Hara, J Okamura, S Miyazaki, Toru Sugimoto, Kiyoshi Kawakami, Masazumi Tsuneyoshi, H Tasaka, Hiromu Yano, Mariantonia Lemos Hoyos, Keiichi Ikeda	1998	21
20	Donor leukocyte infusion after allogeneic bone marrow transplantation was not effective for relapsed rhabdomyosarcoma Bone Marrow Transplantation ·Hiroshi Moritake, R. Consden, H Tasaka, Hiroyuki Koga, S Miyazaki, J Okamura	1998	6

About J Okamura

J Okamura is a scholar working on Hematology, Hepatology, Public Health, Environmental and Occupational Health, Oncology and Immunology, having authored 49 papers that have together received 1.3k indexed citations. Recurring topics across this work include Acute Lymphoblastic Leukemia research (11 papers), Hematopoietic Stem Cell Transplantation (9 papers), Acute Myeloid Leukemia Research (8 papers), Hepatocellular Carcinoma Treatment and Prognosis (7 papers), Neuroblastoma Research and Treatments (5 papers), Cancer, Hypoxia, and Metabolism (4 papers), Chronic Myeloid Leukemia Treatments (4 papers) and T-cell and Retrovirus Studies (3 papers). The work is most often cited by research in Hematology (432 citations), Hepatology (222 citations), Immunology (403 citations), Agronomy and Crop Science (179 citations) and Genetics (148 citations). J Okamura has collaborated with scholars based in Japan, United Kingdom and United States. Frequent co-authors include Masami Sakurai, Hajime Nakamura, C Kuroda, H. Yoshioka, Satoshi Hori, Teruji Tanaka, Yoshihisa Nagatoshi, Seiji Kojima, Shuro Yoshida and Eiichi Ishii. Their work appears in journals such as Bone Marrow Transplantation, Leukemia, Journal of Pediatric Surgery, The Journal of Laryngology & Otology and Blood.

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