Sayaka Oba

509 total citations
6 papers, 379 citations indexed

About

Sayaka Oba is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Oncology. According to data from OpenAlex, Sayaka Oba has authored 6 papers receiving a total of 379 indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Pulmonary and Respiratory Medicine, 3 papers in Surgery and 3 papers in Oncology. Recurrent topics in Sayaka Oba's work include Gastric Cancer Management and Outcomes (4 papers), Colorectal Cancer Screening and Detection (3 papers) and Gastrointestinal Tumor Research and Treatment (2 papers). Sayaka Oba is often cited by papers focused on Gastric Cancer Management and Outcomes (4 papers), Colorectal Cancer Screening and Detection (3 papers) and Gastrointestinal Tumor Research and Treatment (2 papers). Sayaka Oba collaborates with scholars based in Japan and United States. Sayaka Oba's co-authors include Kazuaki Chayama, Shinji Tanaka, Hiroyuki Kanao, Shiro Oka, Masaharu Yoshihara, Aki Matsumoto, Shiro Oka, Yasushi Sano, Fumio Shimamoto and Mikiya Kitamoto and has published in prestigious journals such as Inflammatory Bowel Diseases, Scandinavian Journal of Gastroenterology and Digestion.

In The Last Decade

Sayaka Oba

6 papers receiving 370 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Sayaka Oba Japan	6	332	160	145	136	28	6	379
K. Fu Japan	7	244 0.7×	143 0.9×	181 1.2×	80 0.6×	30 1.1×	15	333
Ahmed C. Khalifa Germany	4	312 0.9×	294 1.8×	225 1.6×	38 0.3×	24 0.9×	7	403
Kyoku Sumimoto Japan	11	350 1.1×	193 1.2×	205 1.4×	121 0.9×	36 1.3×	24	411
Shigeharu Kato Japan	9	209 0.6×	137 0.9×	193 1.3×	37 0.3×	61 2.2×	15	319
Hiroko Nakahira Japan	13	437 1.3×	375 2.3×	148 1.0×	154 1.1×	41 1.5×	33	540
Fumihiko Kito Japan	10	260 0.8×	145 0.9×	60 0.4×	155 1.1×	27 1.0×	32	337
Yohei Yabuuchi Japan	13	323 1.0×	235 1.5×	172 1.2×	168 1.2×	22 0.8×	48	422
Thomas G. Morales United States	11	365 1.1×	463 2.9×	122 0.8×	161 1.2×	30 1.1×	14	583
Naoya Toyoshima Japan	7	175 0.5×	126 0.8×	114 0.8×	71 0.5×	12 0.4×	31	223
M Garino Italy	7	506 1.5×	258 1.6×	88 0.6×	272 2.0×	14 0.5×	16	555

Countries citing papers authored by Sayaka Oba

Since Specialization

Citations

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

Fields of papers citing papers by Sayaka Oba

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sayaka Oba

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

All Works

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6 of 6 papers shown

1.

Oba, Sayaka, Shinji Tanaka, Yasushi Sano, Shiro Oka, & Kazuaki Chayama. (2011). Current Status of Narrow-Band Imaging Magnifying Colonoscopy for Colorectal Neoplasia in Japan. Digestion. 83(3). 167–172. 39 indexed citations

2.

Matsumoto, Aki, Shinji Tanaka, Sayaka Oba, et al.. (2010). Outcome of endoscopic submucosal dissection for colorectal tumors accompanied by fibrosis. Scandinavian Journal of Gastroenterology. 45(11). 1329–1337. 211 indexed citations

3.

Oba, Sayaka, Shinji Tanaka, Shiro Oka, et al.. (2010). Characterization of colorectal tumors using narrow-band imaging magnification: combined diagnosis with both pit pattern and microvessel features. Scandinavian Journal of Gastroenterology. 45(9). 1084–1092. 44 indexed citations

4.

Sumioka, Masaaki, et al.. (2009). Magnifying colonoscopy used to predict disease relapse in patients with quiescent ulcerative colitis. Inflammatory Bowel Diseases. 15(11). 1663–1669. 14 indexed citations

5.

Oka, Shiro, Shinji Tanaka, Hiroyuki Kanao, Sayaka Oba, & Kazuaki Chayama. (2009). THERAPEUTIC STRATEGY FOR COLORECTAL LATERALLY SPREADING TUMOR. Digestive Endoscopy. 21(s1). S43–6. 62 indexed citations

6.

Tanaka, Shinji, Mayuko Hirata, Shiro Oka, et al.. (2008). CLINICAL SIGNIFICANCE OF NARROW BAND IMAGING (NBI) IN DIAGNOSIS AND TREATMENT OF COLORECTAL TUMOR. Acta gastro-enterologica belgica. 50(5). 1289–1297. 9 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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