Oka S

587 total citations
48 papers, 430 citations indexed

About

Oka S is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Oncology. According to data from OpenAlex, Oka S has authored 48 papers receiving a total of 430 indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Pulmonary and Respiratory Medicine, 15 papers in Surgery and 11 papers in Oncology. Recurrent topics in Oka S's work include Gastric Cancer Management and Outcomes (22 papers), Metastasis and carcinoma case studies (11 papers) and Gastrointestinal Tumor Research and Treatment (10 papers). Oka S is often cited by papers focused on Gastric Cancer Management and Outcomes (22 papers), Metastasis and carcinoma case studies (11 papers) and Gastrointestinal Tumor Research and Treatment (10 papers). Oka S collaborates with scholars based in Japan, United States and China. Oka S's co-authors include Shunichi Tsujitani, Nobuaki Kaibara, Michio Maeta, Masahide Ikeguchi, Yoshihito Gomyo, M Ikeguchi, Tetsu Fukunaga, Hiroaki Saito, Akira Kondo and Hajime Orita and has published in prestigious journals such as SHILAP Revista de lepidopterología, British Journal of Cancer and The Journal of Pathology.

In The Last Decade

Oka S

44 papers receiving 416 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Oka S Japan	12	202	159	120	56	56	48	430
Donna Marie L. Alvino United States	9	119 0.6×	127 0.8×	130 1.1×	24 0.4×	130 2.3×	11	373
Donald S. David United States	7	98 0.5×	112 0.7×	72 0.6×	45 0.8×	10 0.2×	11	366
Tara M. Allos United States	10	103 0.5×	153 1.0×	78 0.7×	89 1.6×	57 1.0×	12	434
D Stablein United States	7	117 0.6×	91 0.6×	73 0.6×	67 1.2×	115 2.1×	10	394
Yuanwei Huang China	6	105 0.5×	97 0.6×	83 0.7×	49 0.9×	6 0.1×	8	261
Sammy Ho United States	14	230 1.1×	346 2.2×	304 2.5×	29 0.5×	4 0.1×	46	538
Àngels Vilella Spain	11	118 0.6×	213 1.3×	99 0.8×	36 0.6×	5 0.1×	27	577
Luís Correia Portugal	14	37 0.2×	220 1.4×	64 0.5×	46 0.8×	18 0.3×	52	705
Dalton de Alencar Fischer Chamone Brazil	13	37 0.2×	55 0.3×	65 0.5×	24 0.4×	8 0.1×	38	367
Denis Vetter France	10	71 0.4×	104 0.7×	39 0.3×	23 0.4×	47 0.8×	11	678

Countries citing papers authored by Oka S

Since Specialization

Citations

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

Fields of papers citing papers by Oka S

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Oka S

This figure shows the co-authorship network connecting the top 25 collaborators of Oka S. A scholar is included among the top collaborators of Oka S 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 Oka S. Oka S is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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

20 of 20 papers shown

Hirata, Hiroshi, et al.. (2024). C-reactive Protein-albumin-lymphocyte Index as a Novel Biomarker for Progression in Patients Undergoing Surgery for Renal Cancer. Cancer Diagnosis & Prognosis. 4(6). 748–753. 4 indexed citations

Kanda, Satoshi, Akira Kubota, Oka S, et al.. (2023). Double stapling technique versus hemi-double stapling technique for esophagojejunostomy with OrVil™ after laparoscopic total gastrectomy: a single-blind, randomized clinical trial. Surgical Endoscopy. 37(8). 5931–5942. 3 indexed citations

Chen, Jun, et al.. (2023). Pathological complete response with nivolumab for recurrence of liver metastasis after gastrectomy of gastric cancer. SHILAP Revista de lepidopterología. 9(1). 86–86. 4 indexed citations

Orita, Hajime, Jun Chen, Akira Kubota, et al.. (2022). Long-term outcomes of postgastrectomy syndrome after total laparoscopic distal gastrectomy using the augmented rectangle technique. World Journal of Gastrointestinal Surgery. 14(2). 120–131. 2 indexed citations

Zhang, Shun, Hajime Orita, Ryota Matsui, et al.. (2020). Effectiveness and safety of a laparoscopic training system combined with modified reconstruction techniques for total laparoscopic distal gastrectomy. World Journal of Gastroenterology. 26(13). 1490–1500. 3 indexed citations

Wu, Jian, et al.. (2020). Easy fixation effects the prevention of Peterson’s hernia and Roux stasis syndrome. World Journal of Gastrointestinal Surgery. 12(8). 346–354. 2 indexed citations

Zhang, Shun, et al.. (2020). Concerns of quality, utility, and reliability of laparoscopic gastrectomy for gastric cancer in public video sharing platform. Annals of Translational Medicine. 8(5). 196–196. 40 indexed citations

Urade, Takeshi, Koichi Murata, Hirofumi Sawa, et al.. (2018). Intraoperative ultrasonic navigation for laparoscopic colorectal surgery with preservation of the left colic artery. Techniques in Coloproctology. 22(9). 703–708. 3 indexed citations

Ishibashi, Yuji, et al.. (2017). Triple-stapled quadrilateral anastomosis: a new technique for creation of an esophagogastric anastomosis. Esophagus. 15(2). 88–94. 9 indexed citations

10.

S, Oka, Shinichi Sakuramoto, Yutaka Miyawaki, et al.. (2017). Successful treatment of refractory complete separation of an esophagojejunal anastomosis after laparoscopic total gastrectomy: a case report. BMC Research Notes. 10(1). 267–267. 1 indexed citations

11.

Ootaki, Yoshio, Masahiro Yamaguchi, Naoki Yoshimura, & Oka S. (2004). Pulmonary Agenesis with Congenital Heart Disease. Pediatric Cardiology. 25(2). 145–148. 13 indexed citations

12.

Tsujitani, Shunichi, Oka S, Kazunori Suzuki, et al.. (2001). Prognostic factors in patients with advanced gastric cancer treated by noncurative resection: a multivariate analysis.. PubMed. 48(41). 1504–8. 17 indexed citations

13.

Ikeguchi, Masahide, Kenji Fukuda, Oka S, et al.. (2001). Clinicopathological Findings in Patients with Gastric Adenocarcinoma with Familial Aggregation. Digestive Surgery. 18(6). 439–443. 13 indexed citations

14.

Tachikawa, Natsuo, Akira Yasuoka, & Oka S. (2000). Improvement of Onychomycosis without Antifungal Therapy after Initiation of Highly Active Anti-Retroviral Therapy (HAART) in an HIV-Infected Patient. Japanese Journal of Infectious Diseases. 52(6). 245–246. 4 indexed citations

15.

Ikeguchi, Masahide, Jianhui Cai, Oka S, et al.. (2000). Nuclear profiles of cancer cells reveal the metastatic potential of gastric cancer. The Journal of Pathology. 192(1). 19–25. 8 indexed citations

16.

Ikeguchi, Masahide, et al.. (2000). Combined analysis of p53 and retinoblastoma protein expressions in esophageal cancer. The Annals of Thoracic Surgery. 70(3). 913–917. 22 indexed citations

17.

Maeta, Michio, Jianhui Cai, Oka S, et al.. (1998). Cytokeratin-Positive Cells in Lymph Nodes in Which Metastases Are Undetectable by Conventional Histological Staining in Advanced Gastric Cancer. Yonago acta medica. 41(3). 105–112.

18.

Hirota, Kouichi, Kazuya Hashinaka, Atsushi Saitoh, et al.. (1993). Detection of antibody IgG to HIV‐1 in urine by sensitive enzyme immunoassay (immune complex transfer enzyme immunoassay) using recombinant proteins as antigens for diagnosis of HIV‐1 infection. Journal of Clinical Laboratory Analysis. 7(6). 353–364. 38 indexed citations

19.

S, Oka, Yoshihiro Hirabayashi, Hajime Goto, et al.. (1991). Quantitative estimation of human immunodeficiency virus type-1 provirus in CD4+ T lymphocytes using the polymerase chain reaction. Molecular and Cellular Probes. 5(2). 137–142. 8 indexed citations

20.

S, Oka, Yoshio Hirabayashi, Shinsaku Sakurada, et al.. (1989). Beta-interferon and early stage HIV infection.. PubMed. 2(2). 125–8. 8 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.

Explore authors with similar magnitude of impact