Yoichi Toyama

1000 total citations
37 papers, 536 citations indexed

About

Yoichi Toyama is a scholar working on Surgery, Oncology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Yoichi Toyama has authored 37 papers receiving a total of 536 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Surgery, 14 papers in Oncology and 12 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Yoichi Toyama's work include Hepatocellular Carcinoma Treatment and Prognosis (6 papers), Pancreatic and Hepatic Oncology Research (5 papers) and Immunotherapy and Immune Responses (5 papers). Yoichi Toyama is often cited by papers focused on Hepatocellular Carcinoma Treatment and Prognosis (6 papers), Pancreatic and Hepatic Oncology Research (5 papers) and Immunotherapy and Immune Responses (5 papers). Yoichi Toyama collaborates with scholars based in Japan and United States. Yoichi Toyama's co-authors include Katsuhiko Yanaga, Yoshikazu Fujimura, Hidejiro Kawahara, Kaishi Satomi, Kiyoshi Hirabayashi, Hideo Nakazawa, Shigeo Koido, Michiaki Watanabe, Eiichi Hara and Kiyotaka Fujise and has published in prestigious journals such as SHILAP Revista de lepidopterología, The Journal of Immunology and Cancer Research.

In The Last Decade

Yoichi Toyama

32 papers receiving 513 citations

Peers

Countries citing papers authored by Yoichi Toyama

Since Specialization

Citations

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

Fields of papers citing papers by Yoichi Toyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Yoichi Toyama

This figure shows the co-authorship network connecting the top 25 collaborators of Yoichi Toyama. A scholar is included among the top collaborators of Yoichi Toyama 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 Yoichi Toyama. Yoichi Toyama 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	Simple definition of biologically borderline resectable colorectal liver metastases based on early surgical failure 2025 ·International Journal of Clinical Oncology ·(unknown), Masashi Tsunematsu, Koichiro Haruki, Shinji Onda, (unknown), Michinori Matsumoto, Tomohiko Taniai, Mitsuru Yanagaki, Yoichi Toyama, Toru Ikegami	0
2	The clinical management of peripancreatic fluid collection after distal pancreatectomy 2022 ·Surgery Today ·Masashi Tsunematsu, Yoshihiro Shirai, Ryoga Hamura, Tomohiko Taniai, Mitsuru Yanagaki, Koichiro Haruki, Kenei Furukawa, Shinji Onda, Yoichi Toyama, Takeshi Gocho, Toru Ikegami	3
3	How to Perform Curative Laparoscopic Hepatectomy for Intraoperatively Unidentified Hepatocellular Carcinoma 2021 ·Anticancer Research ·Masashi Tsunematsu, Shinji Onda, Mitsuru Yanagaki, (unknown), Tadashi Uwagawa, Jungo Yasuda, Kenei Furukawa, Koichiro Haruki, Takeshi Gocho, Yoichi Toyama, Toru Ikegami	1
4	Abstract CT218: Wilms′ tumor gene 1 (WT1) peptide-based cancer vaccine combined with gemcitabine for patients with advanced pancreatic cancer 2014 ·Cancer Research ·Shigeo Koido, Sumiyuki Nishida, Sadamu Homma, Yutaka Takeda, Hideo Komita, Satoshi Morita, Toshinori Ito, Soyoko Morimoto, Yoshitaka Oka, Satoru Yanagisawa, Yoichi Toyama, Masahiro Ikegami, Hiroaki Nagano, Toshifumi Ohkusa, Hisao Tajiri, Haruo Sugiyama	2
5	Transumbilical Single-incision Laparoscopic Hepatectomy Using Precoagulation and Clipless Technique in a Patient With Combined Hepatocellular-Cholangiocarcinoma 2013 ·Surgical Laparoscopy Endoscopy & Percutaneous Techniques ·Yoichi Toyama, Seiya Yoshida, (unknown), (unknown), Satoru Yanagisawa, Katsuhiko Yanaga	13
6	Successful adjuvant bi-weekly gemcitabine chemotherapy for pancreatic cancer without impairing patients’ quality of life 2013 ·World Journal of Surgical Oncology ·Yoichi Toyama, Seiya Yoshida, Ryota Saito, (unknown), (unknown), Ryo Miyake, Ryusuke Ito, (unknown), (unknown), (unknown), Katsuhiko Yanaga	8
7	Possibility of sandwiched liver surgery with molecular targeting drugs, cetuximab and bevacizumab on colon cancer liver metastases: a case report 2012 ·World Journal of Surgical Oncology ·Yoichi Toyama, (unknown), Kazuhiro Watanabe, (unknown), Shinji Onda, Ryota Saito, Seiya Yoshida, Hidejiro Kawahara, Satoru Yanagisawa, Katsuhiko Yanaga	0
8	A CASE OF JEJUNAL NECROSIS CAUSED BY SUPERIOR MESENTERIC AND PORTAL VEIN THROMBOSES ASSOCIATED WITH ANTITHROMBIN III DEFICIENCY 2010 ·Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) ·Shinji Onda, (unknown), Yoichi Toyama, Satoru Yanagisawa, Susumu Kobayashi, Katsuhiko Yanaga	0
9	Is modified devine exclusion necessary for gastrojejunostomy in patients with unresectable pancreatobiliary cancer? 2010 ·Surgery Today ·(unknown), Takeyuki Misawa, Yoichi Toyama, Yuichi Ishida, Yuji Ishii, Satoru Yanagisawa, Susumu Kobayashi, Katsuhiko Yanaga	17
10	Streptococcal Preparation OK-432 Promotes Fusion Efficiency and Enhances Induction of Antigen-Specific CTL by Fusions of Dendritic Cells and Colorectal Cancer Cells 2007 ·The Journal of Immunology ·Shigeo Koido, Eiichi Hara, Sadamu Homma, Akira Torii, Makoto Mitsunaga, Satoru Yanagisawa, Yoichi Toyama, Hidejiro Kawahara, Michiaki Watanabe, Seiya Yoshida, Susumu Kobayashi, Katsuhiko Yanaga, Kiyotaka Fujise, Hisao Tajiri	34
11	Synergistic Induction of Antigen-Specific CTL by Fusions of TLR-Stimulated Dendritic Cells and Heat-Stressed Tumor Cells 2007 ·The Journal of Immunology ·Shigeo Koido, Eiichi Hara, Sadamu Homma, Makoto Mitsunaga, Akitaka Takahara, Eijiro Nagasaki, Hidejiro Kawahara, Michiaki Watanabe, Yoichi Toyama, Satoru Yanagisawa, Susumu Kobayashi, Katsuhiko Yanaga, Kiyotaka Fujise, Jianlin Gong, Hisao Tajiri	30
12	A CASE OF THYROID METASTASIS FROM RECTAL CANCER OVER 5 YEARS AFTER OPERATION 2007 ·Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association) ·(unknown), Yoichi Toyama, Kazuhiro Watanabe, Hideyuki Kashiwagi, Katsuya Hirai, Katsuhiko Yanaga	3
13	Successful new method of extracorporeal percutaneous endoscopic gastrostomy (E-PEG) 2007 ·Surgical Endoscopy ·Yoichi Toyama, (unknown), (unknown), Seiya Yoshida, (unknown), Ryusuke Ito, Kazuto Tsuboi, Hideyuki Kashiwagi, Hisao Tajiri, Katsuhiko Yanaga	13
14	Microendoscopic Discectomy for Lumbar Disc Herniation with Bony Fragment Due to Apophyseal Separation 2007 ·min - Minimally Invasive Neurosurgery ·Morio Matsumoto, K. Watanabe, (unknown), Ken Ishii, Hironari Takaishi, Masaya Nakamura, Kazuhiro Chiba, Yoichi Toyama	19
15	Endoscopic Resection of Cystic Lesions in the Lumbar Spinal Canal. A Report of Two Cases 2005 ·min - Minimally Invasive Neurosurgery ·Ken Ishii, Makiko Matsumoto, Kyoichi A. Watanabe, Michio Nakamura, (unknown), Yoichi Toyama	36
16	Induction of antigen-specific CD4- and CD8-mediated T-cell responses by fusions of autologous dendritic cells and metastatic colorectal cancer cells 2005 ·International Journal of Cancer ·Shigeo Koido, Eiichi Hara, Akira Torii, Sadamu Homma, Yoichi Toyama, Hidejiro Kawahara, Masaichi Ogawa, Michiaki Watanabe, Katsuhiko Yanaga, Kiyotaka Fujise, Jianlin Gong, Gotaro Toda	29
17	MR-guided percutaneous cryotherapy of malignant liver tumor under horizontal-magnetic open system: initial experience 2003 ·Journal of Hepato-Biliary-Pancreatic Surgery ·Michiko Dohi, Junta Harada, (unknown), Kunihiko Fukuda, Yoichi Toyama, Hideyuki Kashiwagi	13
18	Experimental evaluation of MR guided percutaneous microwave coagulation therapy (PMCT) ; Artifact and MR temperature monitoring 2000 ·Journal of Microwave Surgery ·Michiko Dohi, (unknown), Reiko Ito, (unknown), Norio Nakata, Junta Harada, Yoichi Toyama, Katsuya Hirai, (unknown), (unknown)	2
19	Effects of Transfusion on Gastrointestinal Anastomotic Wound Healing and Leukocyte Function in Rats 2000 ·European Surgical Research ·Susumu Ohwada, Yoshihiro Sato, N. Sato, Yoichi Toyama, (unknown), (unknown), Tetsushi Ogawa, Y Morishita	6
20	Combination therapy with FK 506 and RS61443 for rejection following allogeneic small bowel transplantation in rats 2000 ·Transplantation Proceedings ·Seiya Yoshida, Yoichi Toyama, (unknown), (unknown), (unknown), Yoshinori Inagaki	2

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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