Masashi Iijima

879 total citations
54 papers, 605 citations indexed

About

Masashi Iijima is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Endocrinology, Diabetes and Metabolism. According to data from OpenAlex, Masashi Iijima has authored 54 papers receiving a total of 605 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Pulmonary and Respiratory Medicine, 13 papers in Surgery and 11 papers in Endocrinology, Diabetes and Metabolism. Recurrent topics in Masashi Iijima's work include Hormonal and reproductive studies (11 papers), Prostate Cancer Diagnosis and Treatment (10 papers) and Sperm and Testicular Function (8 papers). Masashi Iijima is often cited by papers focused on Hormonal and reproductive studies (11 papers), Prostate Cancer Diagnosis and Treatment (10 papers) and Sperm and Testicular Function (8 papers). Masashi Iijima collaborates with scholars based in Japan. Masashi Iijima's co-authors include Kazuyoshi Shigehara, Atsushi Mizokami, Mikio Namiki, Kouji Izumi, Yoshifumi Kadono, Takahiro Nohara, Shohei Kawaguchi, Eitetsu Koh, Hiroyuki Konaka and Kazufumi Nakashima and has published in prestigious journals such as Journal of Clinical Oncology, Scientific Reports and The Journal of Urology.

In The Last Decade

Masashi Iijima

52 papers receiving 599 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Masashi Iijima Japan	13	220	194	140	131	110	54	605
G. Lunglmayr Austria	18	296 1.3×	298 1.5×	154 1.1×	157 1.2×	149 1.4×	80	837
Chan Jong Kim South Korea	14	151 0.7×	95 0.5×	26 0.2×	140 1.1×	77 0.7×	65	558
Ruzhu Lan China	10	52 0.2×	43 0.2×	58 0.4×	160 1.2×	97 0.9×	25	406
K. Walmsley United States	10	56 0.3×	130 0.7×	240 1.7×	68 0.5×	42 0.4×	14	488
Laurel Emerson Canada	16	179 0.8×	146 0.8×	690 4.9×	143 1.1×	34 0.3×	24	1.1k
Masaki Yamanaka Japan	15	183 0.8×	32 0.2×	70 0.5×	227 1.7×	114 1.0×	40	654
Harald Trummer Austria	10	220 1.0×	63 0.3×	73 0.5×	70 0.5×	210 1.9×	24	723
Laura O’Connor United States	9	171 0.8×	78 0.4×	179 1.3×	202 1.5×	8 0.1×	19	631
Şükran Poyrazoğlu Türkiye	18	333 1.5×	40 0.2×	33 0.2×	287 2.2×	97 0.9×	84	794
Bülent Hacıhamdioğlu Türkiye	15	138 0.6×	66 0.3×	20 0.1×	181 1.4×	61 0.6×	54	564

Countries citing papers authored by Masashi Iijima

Since Specialization

Citations

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

Fields of papers citing papers by Masashi Iijima

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masashi Iijima

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

Tsujimura, Akira, Masashi Iijima, Yukihiro Umemoto, et al.. (2025). Summary of the Clinical Practice Guidelines for Male Infertility by the Japanese Urological Association With the Support of the Japan Society for Reproductive Medicine. International Journal of Urology. 32(10). 1301–1313. 1 indexed citations

Kawaguchi, Shohei, Suguru Kadomoto, Hiroaki Iwamoto, et al.. (2022). Influence of the Coronavirus Disease 2019 Vaccine on Drug Therapy for Urological Cancer. Anticancer Research. 42(4). 2105–2111. 1 indexed citations

Iwamoto, Hiroaki, Tomoyuki Makino, Suguru Kadomoto, et al.. (2022). Analysis of the Safety of Pegfilgrastim Addition in Bleomycin, Etoposide, and Cisplatin Treatment Patients With Germ Cell Tumors. Frontiers in Oncology. 11. 770067–770067. 2 indexed citations

Kadono, Yoshifumi, Takahiro Nohara, Shohei Kawaguchi, et al.. (2022). Investigating the mechanism underlying urinary continence using dynamic MRI after Retzius-sparing robot-assisted radical prostatectomy. Scientific Reports. 12(1). 3975–3975. 9 indexed citations

Nohara, Takahiro, Hiroshi Kano, Yuki Kato, et al.. (2021). Variations in photodynamic diagnosis for bladder cancer due to the quality of endoscopic equipment. Photodiagnosis and Photodynamic Therapy. 37. 102628–102628. 7 indexed citations

Makino, Tomoyuki, Takayuki Sakurai, Shigeyuki Takamatsu, et al.. (2021). The effectiveness of high-dose-rate brachytherapy with external beam radiotherapy for clinically locally advanced and node-positive prostate cancer: long-term results of a retrospective study. International Journal of Clinical Oncology. 26(12). 2310–2317. 3 indexed citations

Izumi, Kouji, Takashi Shima, Kazuyoshi Shigehara, et al.. (2021). A novel risk classification score for malignant ureteral obstruction: a multicenter prospective validation study. Scientific Reports. 11(1). 4455–4455. 10 indexed citations

Iijima, Masashi, Kazuyoshi Shigehara, Hideki Igarashi, et al.. (2019). Y chromosome microdeletion screening using a new molecular diagnostic method in 1030 Japanese males with infertility. Asian Journal of Andrology. 22(4). 368–368. 18 indexed citations

Nakagawa, Tomomi, Yoshifumi Kadono, Renato Naito, et al.. (2019). Factors Associated With Treatment Satisfaction After Robot-assisted Radical Prostatectomy. Anticancer Research. 39(11). 6339–6346. 6 indexed citations

10.

Nakashima, Kazufumi, Tomoyuki Makino, Suguru Kadomoto, et al.. (2019). Initial Experience With Radium-223 Chloride Treatment at the Kanazawa University Hospital. Anticancer Research. 39(5). 2607–2614. 12 indexed citations

11.

Kawaguchi, Shohei, Yoshifumi Kadono, Takahiro Nohara, et al.. (2019). A Case Report of Chyloretroperitoneum Post Living-Donor Transplantation. Urologia Internationalis. 104(1-2). 160–162.

12.

Matsuyama, Satoko, Futoshi Matsui, Keiko Matsuoka, et al.. (2018). Gonadal function and testicular histology in males with Prader‐Willi syndrome. Endocrinology Diabetes & Metabolism. 2(1). e00049–e00049. 9 indexed citations

13.

Makino, Tomoyuki, Kazufumi Nakashima, Masashi Iijima, et al.. (2018). Health-related Quality of Life and Toxicity After Single-fraction High-dose-rate Brachytherapy With External Beam Radiotherapy for Localized and Locally Advanced Prostate Cancer. Anticancer Research. 39(1). 477–486. 7 indexed citations

14.

Nakagawa, Tomomi, Kazuyoshi Shigehara, Renato Naito, et al.. (2018). Reiter’s syndrome following intravesical Bacillus Calmette-Guerin therapy for bladder carcinoma: a report of five cases. International Cancer Conference Journal. 7(4). 148–151. 6 indexed citations

15.

Shigehara, Kazuyoshi, Hiroyuki Konaka, Eitetsu Koh, et al.. (2017). Effects of testosterone replacement therapy on hypogonadal men with osteopenia or osteoporosis: a subanalysis of a prospective randomized controlled study in Japan (EARTH study). The Aging Male. 20(3). 1–7. 26 indexed citations

16.

Izumi, Kouji, Aerken Maolake, Masashi Iijima, et al.. (2016). Treatment Outcome of Low-dose Interleukin-2 Therapy in Patients with Metastatic Renal Cell Carcinoma. Anticancer Research. 36(9). 4961–4964. 9 indexed citations

17.

Kadono, Yoshifumi, Takahiro Nohara, Suguru Kadomoto, et al.. (2016). Investigating Urinary Conditions Prior to Robot-assisted Radical Prostatectomy in Search of a Desirable Method for Evaluating Post-prostatectomy Incontinence.. PubMed. 36(8). 4293–8. 10 indexed citations

18.

Sugimoto, Kazuhiro, et al.. (2013). Aberrant methylation of the TDMR of the GTF2A1L promoter does not affect fertilisation rates via TESE in patients with hypospermatogenesis. Asian Journal of Andrology. 15(5). 634–639. 6 indexed citations

19.

Iijima, Masashi, Kazuyoshi Shigehara, Kazuhiro Sugimoto, et al.. (2011). Myelodysplastic syndrome treated effectively with testosterone enanthate. International Journal of Urology. 18(6). 469–471. 3 indexed citations

20.

Shigehara, Kazuyoshi, Kazuhiro Sugimoto, Hiroyuki Konaka, et al.. (2010). Androgen replacement therapy contributes to improving lower urinary tract symptoms in patients with hypogonadism and benign prostate hypertrophy: a randomised controlled study. The Aging Male. 14(1). 53–58. 116 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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