World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
90
Citations
29590
World Ranking
12211
National Ranking
359

Kiwamu Okita publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Kiwamu Okita sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 611 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 612 publications — 73rd percentile

73% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

Kiwamu Okita D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where Kiwamu Okita sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 400 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 90 D-Index — 41st percentile

41% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Overview

Kiwamu Okita is affiliated with Yamaguchi University in Japan. Their academic profile does not list recent papers, frequent co-authors, or publication venues, which indicates either an early stage in their research dissemination or limited publicly indexed publications at this time.

The absence of detailed information on fields of study, subfields, and specific research topics prevents a precise characterization of Okita's research focus. Similarly, no book publications or awards are recorded in the available data, suggesting a profile primarily rooted in ongoing research activities rather than extensive published output or formal recognitions.

Despite the limited publication and citation records visible, Kiwamu Okita's association with Yamaguchi University places them within an academic environment known for research activities in various scientific and engineering disciplines. This affiliation provides access to a research framework that supports scholarly contributions, even if those contributions are not extensively documented or publicly indexed at this time.

The profile does not identify any co-authorship networks or frequent collaborators, which might indicate solo research work or collaboration not yet extensively indexed in bibliometric databases.

Without further bibliographic details such as publication titles, venues, or thematic areas explored, it is difficult to assess the specific academic contributions or research trajectory of Kiwamu Okita. The available information focuses on the institutional connection and the absence of detailed scholarly outputs.

Best Publications

  • Prospective Cohort Study of Transarterial Chemoembolization for Unresectable Hepatocellular Carcinoma in 8510 Patients

    Kenichi Takayasu;Shigeki Arii;Iwao Ikai;Masao Omata

  • Results of surgical and nonsurgical treatment for small-sized hepatocellular carcinomas: A retrospective and nationwide survey in Japan

    Shigeki Arii;Yoshio Yamaoka;Syunji Futagawa;Kyoichi Inoue

  • Transplantation of bone marrow cells reduces CCl4-induced liver fibrosis in mice.

    Isao Sakaida;Shuji Terai;Naoki Yamamoto;Koji Aoyama

  • Improved Liver Function in Patients with Liver Cirrhosis After Autologous Bone Marrow Cell Infusion Therapy

    Shuji Terai;Tsuyoshi Ishikawa;Kaoru Omori;Koji Aoyama

  • Phase III study of sorafenib after transarterial chemoembolisation in Japanese and Korean patients with unresectable hepatocellular carcinoma.

    Masatoshi Kudo;Kazuho Imanaka;Nobuyuki Chida;Kohei Nakachi

  • Reevaluation of prognostic factors for survival after liver resection in patients with hepatocellular carcinoma in a Japanese nationwide survey.

    Iwao Ikai;Shigeki Arii;Masamichi Kojiro;Takafumi Ichida

  • Geographic distribution of hepatitis B virus (HBV) genotype in patients with chronic HBV infection in Japan

    Etsuro Orito;Takafumi Ichida;Hiroshi Sakugawa;Michio Sata

  • Randomised, multicentre prospective trial of transarterial chemoembolisation (TACE) plus sorafenib as compared with TACE alone in patients with hepatocellular carcinoma: TACTICS trial.

    Masatoshi Kudo;Kazuomi Ueshima;Masafumi Ikeda;Takuji Torimura

  • Risk factors for hepatocellular carcinoma and its incidence after interferon treatment in patients with chronic hepatitis C

    Akinori Kasahara;Norio Hayashi;Kiyoshi Mochizuki;Masahide Takayanagi

  • Report of the 17th Nationwide Follow-up Survey of Primary Liver Cancer in Japan.

    Iwao Ikai;Shigeki Arii;Masatoshi Okazaki;Kiwamu Okita

  • Endoscopic Resection of Early Gastric Cancer

    M. Tada;A. Murakami;M. Karita;H. Yanai

  • Comparison of the outcomes between an anatomical subsegmentectomy and a non-anatomical minor hepatectomy for single hepatocellular carcinomas based on a Japanese nationwide survey

    Susumu Eguchi;Takashi Kanematsu;Shigeki Arii;Masatoshi Okazaki

  • Development of evidence-based clinical guidelines for the diagnosis and treatment of hepatocellular carcinoma in Japan.

    Masatoshi Makuuchi;Norihiro Kokudo;Shigeki Arii;Shunji Futagawa

  • Phase 2 study of lenvatinib in patients with advanced hepatocellular carcinoma.

    Kenji Ikeda;Masatoshi Kudo;Seiji Kawazoe;Yukio Osaki

  • A urease-negative mutant of Helicobacter pylori constructed by allelic exchange mutagenesis lacks the ability to colonize the nude mouse stomach.

    M. Tsuda;M. Karita;Muhammad Golam Morshed;K. Okita

  • General rules for recording endoscopic findings of esophagogastric varices (2nd edition).

    Takashi Tajiri;Hiroshi Yoshida;Katsutoshi Obara;Morikazu Onji

  • Hepatitis C Virus–Induced Reactive Oxygen Species Raise Hepatic Iron Level in Mice by Reducing Hepcidin Transcription

    Sohji Nishina;Keisuke Hino;Masaaki Korenaga;Chiara Vecchi

  • Genetic aberrations detected by comparative genomic hybridization in hepatocellular carcinomas: their relationship to clinicopathological features.

    Noriyoshi Kusano;Kei Shiraishi;Keiko Kubo;Atsunori Oga

  • Morphologic studies of the liver cell dysplasia.

    S. Watanabe;K. Okita;T. Harada;T. Kodama

  • BCAA-enriched snack improves nutritional state of cirrhosis.

    Yutaka Nakaya;Kiwamu Okita;Kazuyuki Suzuki;Hisataka Moriwaki

Frequent Co-Authors

Hiromitsu Kumada
Hiromitsu Kumada Fukuoka University
Masatoshi Makuuchi
Masatoshi Makuuchi University of Tokyo
Masao Omata
Masao Omata University of Tokyo
Norio Hayashi
Norio Hayashi Osaka University
Michio Sata
Michio Sata Kurume University
Hiroshi Nishina
Hiroshi Nishina Tokyo Medical and Dental University
Masamichi Kojiro
Masamichi Kojiro Kurume University
Masatoshi Kudo
Masatoshi Kudo Kindai University
Teruko Nakazawa
Teruko Nakazawa Yamaguchi University
Eiji Tanaka
Eiji Tanaka Shinshu University

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