M Okada

576 total citations
28 papers, 433 citations indexed

About

M Okada is a scholar working on Surgery, Epidemiology and Genetics. According to data from OpenAlex, M Okada has authored 28 papers receiving a total of 433 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Surgery, 12 papers in Epidemiology and 10 papers in Genetics. Recurrent topics in M Okada's work include Inflammatory Bowel Disease (10 papers), Microscopic Colitis (8 papers) and Helicobacter pylori-related gastroenterology studies (7 papers). M Okada is often cited by papers focused on Inflammatory Bowel Disease (10 papers), Microscopic Colitis (8 papers) and Helicobacter pylori-related gastroenterology studies (7 papers). M Okada collaborates with scholars based in Japan. M Okada's co-authors include T. Yao, M. Hosomi, Myung‐Ji Seo, Kazuhiro Maeda, R. Sudo, N. Okabe, T. Sasazuki, Akinori Kimura, Takayuki Yamamoto and Kazuhiro Maeda and has published in prestigious journals such as Gut, Radiology and Environment International.

In The Last Decade

M Okada

26 papers receiving 411 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
M Okada Japan	11	216	201	151	70	61	28	433
Yusuf Üstün Türkiye	10	159 0.7×	89 0.4×	90 0.6×	56 0.8×	48 0.8×	38	508
Jens Peder Hart Hansen Denmark	15	185 0.9×	42 0.2×	166 1.1×	31 0.4×	34 0.6×	29	802
Adina Welander Sweden	7	137 0.6×	64 0.3×	105 0.7×	193 2.8×	20 0.3×	8	358
Mustafa Yakut Türkiye	12	154 0.7×	82 0.4×	291 1.9×	69 1.0×	54 0.9×	34	550
Iria Bastón‐Rey Spain	7	329 1.5×	222 1.1×	193 1.3×	55 0.8×	39 0.6×	28	489
Motohiro Esaki Japan	12	432 2.0×	189 0.9×	128 0.8×	128 1.8×	286 4.7×	30	654
İşılay Nadir Türkiye	11	141 0.7×	35 0.2×	76 0.5×	46 0.7×	42 0.7×	19	271
Chi Hyuk Oh South Korea	13	187 0.9×	63 0.3×	124 0.8×	37 0.5×	113 1.9×	45	394
Pantelis Karatzas Greece	9	152 0.7×	327 1.6×	246 1.6×	27 0.4×	17 0.3×	22	510
C Braga Italy	12	103 0.5×	137 0.7×	117 0.8×	5 0.1×	50 0.8×	22	646

Countries citing papers authored by M Okada

Since Specialization

Citations

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

Fields of papers citing papers by M Okada

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of M Okada

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

Shimada, Masatoshi, Michiko Takahashi, M Okada, et al.. (2004). Stromal invasion of the cervix can be excluded from the criteria for using adjuvant radiotherapy following radical surgery for patients with cervical cancer. Gynecologic Oncology. 93(3). 628–631. 18 indexed citations

Honda, Nobuaki, Yoshiaki Yamada, M Okada, et al.. (2001). Clinical study of transitional cell carcinoma of the prostate associated with bladder transitional cell carcinoma. International Journal of Urology. 8(12). 662–668. 4 indexed citations

Maeda, Kazuhiro, Mitsuru Seo, M Okada, et al.. (2001). A Study on Crohn's Disease Initially Suggested by Perianal Lesions: Comparison with Crohn's Disease Initially Suggested by Abdominal Symptoms.. Nihon Daicho Komonbyo Gakkai Zasshi. 54(6). 391–395. 1 indexed citations

Kawahara, Kenta, et al.. (2001). [An autopsy case of primary aortoduodenal fistula complicated by both gastric carcinoma and acute gastric mucosal lesions].. PubMed. 49(1). 77–81. 1 indexed citations

Kimura, Akinori, et al.. (1999). HLA class II alleles in Japanese patients with inflammatory bowel disease. Tissue Antigens. 53(4). 350–358. 55 indexed citations

Okada, M, et al.. (1999). A new quadruple therapy for Helicobacter pylori: influence of resistant strains on treatment outcome. Alimentary Pharmacology & Therapeutics. 13(6). 769–774. 51 indexed citations

Seo, Myeongsook, et al.. (1999). Serial Radiographic Change of Ischemic Enteritis. Report of a Case.. Nihon Daicho Komonbyo Gakkai Zasshi. 52(6). 505–511. 2 indexed citations

Matsui, Toshiyuki, et al.. (1999). [Comparison of the therapeutic effects and acid suppression of H2-receptor antagonist and proton pump inhibitor in patients with gastric body ulcer--a prospective controlled trial].. PubMed. 96(5). 502–10.

Itamochi, Hiroaki, Junzo Kigawa, Y Minagawa, et al.. (1997). Antitumor effects of internal iliac arterial infusion of platinum compounds in a rabbit cervical cancer model. Obstetrics and Gynecology. 89(2). 286–290. 11 indexed citations

10.

Aoyagi, Kenta, Mitsuo Iida, T. Yao, et al.. (1997). Characteristic endoscopic features of intestinal lymphangiectasia: correlation with histological findings.. PubMed. 44(13). 133–8. 25 indexed citations

11.

Matsumoto, Takuya, Fumitoshi Kuroki, Shotaro Nakamura, et al.. (1996). Dysplasia in ulcerative colitis: is radiography adequate for diagnosis?. Radiology. 199(1). 85–90. 5 indexed citations

12.

Okada, M, Toshihiro Sakurai, T. Yao, et al.. (1996). Radiographic findings of intractable gastric ulcers with H 2 -receptor antagonists. Abdominal Imaging. 21(2). 133–141. 1 indexed citations

13.

Seo, Myung‐Ji, et al.. (1995). Evaluation of disease activity in patients with moderately active ulcerative colitis: comparisons between a new activity index and Truelove and Witts' classification.. PubMed. 90(10). 1759–63. 64 indexed citations

14.

Aoyagi, Kenta, Mitsuo Iida, Takashi Yao, et al.. (1994). Intestinal lymphangiectasia: Value of double-contrast radiographic study. Clinical Radiology. 49(11). 814–819. 14 indexed citations

15.

Okada, M, et al.. (1993). Quality of Life in 106 Japanese Patients with Crohn's Disease.. Nihon Daicho Komonbyo Gakkai Zasshi. 46(2). 136–146. 3 indexed citations

16.

Iida, Mitsuo, H. Suekane, Shuji Tada, et al.. (1991). Double-contrast radiographic features in primary small intestinal lymphoma of the ‘Western’ type: Correlation with pathological findings. Clinical Radiology. 44(5). 322–326. 9 indexed citations

17.

Okada, M, T. Yao, Kazuhiro Maeda, et al.. (1990). Predictors of duodenal ulcer healing during treatment with cimetidine.. Gut. 31(7). 758–762. 5 indexed citations

18.

Yao, T., M Okada, Tai Fuchigami, et al.. (1989). The relationship between the radiological and clinical features in patients with crohn's disease. Clinical Radiology. 40(4). 389–392. 13 indexed citations

19.

Matake, Hiroaki, Setsuya Naito, Masahiro Iida, et al.. (1989). [HLA study in 108 Japanese patients with Crohn's disease].. PubMed. 86(7). 1448–54. 2 indexed citations

20.

Okada, M, T. Yao, Tai Fuchigami, Kentaro Imamura, & T Omae. (1984). Factors influencing the healing rate of gastric ulcer in hospitalised subjects.. Gut. 25(8). 881–885. 14 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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