Kotaro Iijima

1.3k total citations
59 papers, 873 citations indexed

About

Kotaro Iijima is a scholar working on Cancer Research, Oncology and Pathology and Forensic Medicine. According to data from OpenAlex, Kotaro Iijima has authored 59 papers receiving a total of 873 indexed citations (citations by other indexed papers that have themselves been cited), including 34 papers in Cancer Research, 31 papers in Oncology and 18 papers in Pathology and Forensic Medicine. Recurrent topics in Kotaro Iijima's work include Breast Cancer Treatment Studies (32 papers), Breast Lesions and Carcinomas (17 papers) and HER2/EGFR in Cancer Research (8 papers). Kotaro Iijima is often cited by papers focused on Breast Cancer Treatment Studies (32 papers), Breast Lesions and Carcinomas (17 papers) and HER2/EGFR in Cancer Research (8 papers). Kotaro Iijima collaborates with scholars based in Japan, United States and India. Kotaro Iijima's co-authors include Takuji Iwase, Naoki Hayashi, Naoki Niikura, Hiroaki Miyata, Futoshi Akiyama, Masujiro Makita, Masaaki Kawai, Hideji Masuoka, Shinobu Masuda and Seigo Nakamura and has published in prestigious journals such as Journal of Clinical Oncology, SHILAP Revista de lepidopterología and Cancer Research.

In The Last Decade

Kotaro Iijima

50 papers receiving 853 citations

Peers

Countries citing papers authored by Kotaro Iijima

Since Specialization

Citations

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

Fields of papers citing papers by Kotaro Iijima

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kotaro Iijima

This figure shows the co-authorship network connecting the top 25 collaborators of Kotaro Iijima. A scholar is included among the top collaborators of Kotaro Iijima 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 Kotaro Iijima. Kotaro Iijima 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	Machine learning prediction for lung dose in locally advanced esophageal cancer using volumetric modulated arc therapy 2025 ·Medical dosimetry ·(unknown), Hiroyuki Okamoto, (unknown), (unknown), Satoshi Nakamura, Kotaro Iijima, Takahito Chiba, (unknown), Tairo Kashihara, Koji Inaba, Hiroshi Igaki	0
2	A new approach to assess transit dose impact in gynecological and prostate brachytherapy with effective transit time 2024 ·Journal of Contemporary Brachytherapy ·(unknown), Hiroyuki Okamoto, Satoshi Nakamura, Kotaro Iijima, Takahito Chiba, Hiroki Nakayama, (unknown), Mihiro Takemori, (unknown), Wei-Shan Chang, Hiroshi Igaki	2
3	Optimizing the planning process in computed tomography-based image-guided adaptive brachytherapy for cervical cancer using a spreadsheet-based daily dose management system 2024 ·Radiological Physics and Technology ·(unknown), Takahito Chiba, Naoya Murakami, Kotaro Iijima, Tatsuya Inoue, Noriyuki Okonogi, (unknown), (unknown), (unknown), (unknown), Satoshi Nakamura, Hiroki Nakayama, Yasuhisa Terao, Naoto Shikama	0
4	Characteristics of female breast cancer in japan: annual report of the National Clinical Database in 2018 2022 ·Breast Cancer ·Keiichiro Tada, Hiraku Kumamaru, Hiroaki Miyata, Sota Asaga, Kotaro Iijima, Etsuyo Ogo, Takayuki Kadoya, Makoto Kubo, Yasuyuki Kojima, (unknown), Kenji Tamura, Masayuki Nagahashi, Naoki Niikura, Naoki Hayashi, Minoru Miyashita, Masayuki Yoshida, Shinji Ohno, Shigeru Imoto, Hiromitsu Jinno	27
5	Surgical treatment trends and identification of primary breast tumors after surgery in occult breast cancer: a study based on the Japanese National Clinical Database—Breast Cancer Registry 2022 ·Breast Cancer ·Mitsuo Terada, Minoru Miyashita, Hiraku Kumamaru, Hiroaki Miyata, Kenji Tamura, (unknown), Etsuyo Ogo, Masayuki Nagahashi, Sota Asaga, Yasuyuki Kojima, Takayuki Kadoya, Kenjiro Aogi, Naoki Niikura, Kotaro Iijima, Naoki Hayashi, Makoto Kubo, Yutaka Yamamoto, Hiromitsu Jinno	11
6	Clinicopathological features of male patients with breast cancer based on a nationwide registry database in Japan 2022 ·Breast Cancer ·Akihiko Shimomura, Masayuki Nagahashi, Hiraku Kumamaru, (unknown), Sota Asaga, Naoki Hayashi, Kotaro Iijima, Takayuki Kadoya, (unknown), Makoto Kubo, Minoru Miyashita, Hiroaki Miyata, Naoki Niikura, Etsuyo Ogo, Kenji Tamura, (unknown), Masayuki Yoshida, Yutaka Yamamoto, Shigeru Imoto, Hiromitsu Jinno	8
7	Annual report of the Japanese Breast Cancer Society registry for 2016 2020 ·Breast Cancer ·Makoto Kubo, Hiraku Kumamaru, (unknown), Minoru Miyashita, Masayuki Nagahashi, Takayuki Kadoya, Yasuyuki Kojima, Kenjiro Aogi, Naoki Hayashi, Kenji Tamura, Sota Asaga, Naoki Niikura, Etsuyo Ogo, Kotaro Iijima, (unknown), Masayuki Yoshida, Hiroaki Miyata, Yutaka Yamamoto, Shigeru Imoto, Hiromitsu Jinno	23
8	Difficulty Diagnosing a Brain Tumor during Clinical Maintenance of a Complete Response to anti-HER2 Treatments for Metastatic Breast Cancer: A Case Report 2020 ·Case Reports in Oncology ·(unknown), Yoshiya Horimoto, Atsushi Arakawa, Yoko Edahiro, Tomoiku Takaku, Kotaro Iijima, Mitsue Saito	1
9	Annual report of the Japanese Breast Cancer Registry for 2017 2020 ·Breast Cancer ·Naoki Hayashi, Hiraku Kumamaru, (unknown), Kenjiro Aogi, Sota Asaga, Kotaro Iijima, Takayuki Kadoya, Yasuyuki Kojima, Makoto Kubo, Minoru Miyashita, Hiroaki Miyata, Masayuki Nagahashi, Naoki Niikura, Etsuyo Ogo, Kenji Tamura, (unknown), Yutaka Yamamoto, Masayuki Yoshida, Shigeru Imoto, Hiromitsu Jinno	29
10	Impact of circulating tumour cells on survival of eribulin-treated patients with metastatic breast cancer 2019 ·Medical Oncology ·(unknown), Yoshiya Horimoto, Emi Tokuda, (unknown), (unknown), (unknown), Katsuya Nakai, (unknown), Kotaro Iijima, Mitsue Saito	14
11	Breast Cancer in Lean Postmenopausal Women Might Have Specific Pathological Features 2019 ·In Vivo ·(unknown), Yoshiya Horimoto, Atsushi Arakawa, Kotaro Iijima, Mitsue Saito	2
12	Surgical excision without whole breast irradiation for complete resection of ductal carcinoma in situ identified using strict, unified criteria 2016 ·The American Journal of Surgery ·Takehiko Sakai, Takuji Iwase, (unknown), Akemi Kataoka, Dai Kitagawa, (unknown), Akiko Ogiya, Yumi Miyagi, Kotaro Iijima, (unknown), Masujiro Makita, Naoya Gomi, Masahiko Oguchi, Yoshinori Ito, Rie Horii, Futoshi Akiyama, Shinji Ohno	3
13	Changes in tumor expression of HER2 and hormone receptors status after neoadjuvant chemotherapy in 21 755 patients from the Japanese breast cancer registry 2015 ·Annals of Oncology ·Naoki Niikura, Ai Tomotaki, Hiroaki Miyata, Takayuki Iwamoto, Masaaki Kawai, (unknown), Naoki Hayashi, K. Aogi, Takashi Ishida, Hideji Masuoka, Kotaro Iijima, Shinobu Masuda, Koichiro Tsugawa, Takayuki Kinoshita, Seigo Nakamura, Yutaka Tokuda	131
14	Decreased hormonal sensitivity after childbirth rather than the tumor size influences the prognosis of very young breast cancer patients 2015 ·SpringerPlus ·Masujiro Makita, Takehiko Sakai, Akemi Kataoka, Dai Kitagawa, Akiko Ogiya, (unknown), Yumi Miyagi, Kotaro Iijima, Kokoro Kobayashi, Takayuki Kobayashi, Ippei Fukada, Kazuhiro Araki, Shunji Takahashi, Yoshinori Ito, Naoya Gomi, Masahiko Oguchi, (unknown), Masami Arai, Futoshi Akiyama, Takuji Iwase	0
15	Non-sentinel lymph node analysis with one-step nucleic acid amplification in breast cancer patients 2015 ·The Breast ·Akiko Ogiya, Takuji Iwase, Dai Kitagawa, (unknown), Takehiko Sakai, Yumi Miyagi, Kotaro Iijima, (unknown), Masujiro Makita, Rie Horii, Futoshi Akiyama	2
16	Optimal surveillance for postoperative metastasis in breast cancer patients 2014 ·Breast Cancer ·Masujiro Makita, Takehiko Sakai, Akiko Ogiya, Dai Kitagawa, (unknown), Yumi Miyagi, Kotaro Iijima, Takuji Iwase	10
17	Histogenesis of metaplastic breast carcinoma and axillary nodal metastases 2009 ·Pathology International ·Tomo Osako, Rie Horii, Akiko Ogiya, Kotaro Iijima, Takuji Iwase, Futoshi Akiyama	14
18	2007 ·Nihon Nyugan Kenshin Gakkaishi (Journal of Japan Association of Breast Cancer Screening) ·Akiko Ogiya, Masujiro Makita, (unknown), Kotaro Iijima, Yumi Miyagi, Seiichiro Nishimura, Keiichiro Tada, Naoya Gomi, Rie Horii, Futoshi Akiyama, (unknown)	0
19	Two case of breast cancer with cartilaginous and osseous metaplasia 2005 ·Breast Cancer ·Jun Ninomiya, Tetsunari Oyama, Jun Horiguchi, Yukio Koibuchi, Takashi Yoshida, Kotaro Iijima, Miho Yoshida, Daisuke Takata, Yuichi Iino, Yasuo Morishita	24
20	2004 ·Nihon Nyugan Kenshin Gakkaishi (Journal of Japan Association of Breast Cancer Screening) ·Tetsunari Oyama, (unknown), Kotaro Iijima, Miho Yoshida, Jun Ninomiya, Yukio Koibuchi, Jun Horiguchi, Takao Yokoe, Yuichi Iino	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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