M. Oka

981 total citations
15 papers, 740 citations indexed

About

M. Oka is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Epidemiology. According to data from OpenAlex, M. Oka has authored 15 papers receiving a total of 740 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Surgery, 4 papers in Pulmonary and Respiratory Medicine and 4 papers in Epidemiology. Recurrent topics in M. Oka's work include Helicobacter pylori-related gastroenterology studies (4 papers), Gastric Cancer Management and Outcomes (4 papers) and Metastasis and carcinoma case studies (3 papers). M. Oka is often cited by papers focused on Helicobacter pylori-related gastroenterology studies (4 papers), Gastric Cancer Management and Outcomes (4 papers) and Metastasis and carcinoma case studies (3 papers). M. Oka collaborates with scholars based in Japan and United States. M. Oka's co-authors include M. Ichinose, Mitsuhiro Fujishiro, Naomi Kakushima, Masao Omata, Yasuhito Shimizu, Katsuya Kobayashi, Naohisa Yahagi, Takuhei Hashimoto, Shintaro Enomoto and Mikitaka Iguchi and has published in prestigious journals such as Clinical Infectious Diseases, Biochemical and Biophysical Research Communications and European Journal of Clinical Nutrition.

In The Last Decade

M. Oka

14 papers receiving 715 citations

Peers

Countries citing papers authored by M. Oka

Since Specialization

Citations

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

Fields of papers citing papers by M. Oka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of M. Oka

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

15 of 15 papers shown

#	Work	Indexed citations
1	Papuloerythroderma of Ofuji Associated with Elevated Varicella-zoster Virus Complement-fixing Antibody Titers Following BNT162b2 mRNA COVID-19 Vaccination 2025 ·Acta Dermato Venereologica ·M. Oka	0
2	Late‐Onset Maculopapular Eruptions Associated with Elevated Varicella‐Zoster Virus Complement‐Fixing Antibody Titers following BNT162b2 mRNA COVID‐19 Vaccination in Older Adult Japanese Patients: A Cross‐Sectional Study 2024 ·Dermatologic Therapy ·M. Oka, Yosuke Fujii, S. Murakami	1
3	Onychomycosis as a Warning Sign for Peripheral Arterial Disease 2013 ·Acta Dermato Venereologica ·Atsushi Fukunaga, Ken Washio, Kanako Ogura, Kumiko Taguchi, (unknown), Yoshinori Ohno, Masaki Terada, Hiroyuki Nagai, (unknown), M. Oka, Chikako Nishigori	16
4	Inhibitory effects of Japanese apricot (Prunus mume Siebold et Zucc.; Ume) on Helicobacter pylori-related chronic gastritis 2010 ·European Journal of Clinical Nutrition ·Shintaro Enomoto, Kimihiko Yanaoka, Hirotoshi Utsunomiya, Tohru Niwa, Ken‐ichi Inada, Hisanobu Deguchi, Kazuki Ueda, Chizu Mukoubayashi, Izumi Inoue, Takao Maekita, Kazuyuki Nakazawa, Mikitaka Iguchi, Kenji Arii, Hideyuki Tamai, Noriko Yoshimura, Mitsuhiro Fujishiro, M. Oka, M. Ichinose	49
5	Clinical evaluation of the QuantiFERON-TB Gold test in patients with non-tuberculous mycobacterial disease. 2009 ·PubMed ·Yoshihiro Kobashi, (unknown), Shinichi Yagi, Yasushi Obase, Naoyuki Miyashita, Niro Okimoto, Tomohiro Matsushima, Takeshi Kageoka, M. Oka	45
6	Novel endoscopic hemostasis technique for use during endoscopic submucosal dissection 2007 ·Endoscopy ·Shintaro Enomoto, Naohisa Yahagi, Mitsuhiro Fujishiro, M. Oka, Naomi Kakushima, Mikitaka Iguchi, Kimihiko Yanaoka, Kenji Arii, Hideyuki Tamai, Yasuhito Shimizu, Masao Omata, M. Ichinose	21
7	Clinical Reevaluation of the QuantiFERON TB-2G Test as a Diagnostic Method for Differentiating Active Tuberculosis from Nontuberculous Mycobacteriosis 2006 ·Clinical Infectious Diseases ·Yoshihiro Kobashi, Yasushi Obase, Minoru Fukuda, Keiichi Yoshida, Naoyuki Miyashita, M. Oka	73
8	Successful nonsurgical management of perforation complicating endoscopic submucosal dissection of gastrointestinal epithelial neoplasms 2006 ·Endoscopy ·Mitsuhiro Fujishiro, Naohisa Yahagi, Naomi Kakushima, Shinya Kodashima, Yosuke Muraki, Satoshi Ono, Katsuya Kobayashi, Takuhei Hashimoto, Nobutake Yamamichi, Ayako Tateishi, Yasuhito Shimizu, M. Oka, K. Ogura, Takeshi Kawabe, M. Ichinose, Masao Omata	133
9	Comparison of Various Submucosal Injection Solutions for Maintaining Mucosal Elevation During Endoscopic Mucosal Resection 2004 ·Endoscopy ·Mitsuhiro Fujishiro, Naohisa Yahagi, Koji Kashimura, Y. Mizushima, M. Oka, Shintaro Enomoto, Naomi Kakushima, Katsuya Kobayashi, Takuhei Hashimoto, Mikitaka Iguchi, Yasuhito Shimizu, M. Ichinose, Masao Omata	216
10	An Unusual Case of Polypoid Angiodysplasia 2004 ·Endoscopy ·Naomi Kakushima, Mitsuhiro Fujishiro, Naohisa Yahagi, M. Oka, Keiichi Kobayashi, Takuhei Hashimoto, Hideyuki Miyoshi, Yohsuke Moriyama, Shintaro Enomoto, Mikitaka Iguchi, M. Ichinose, Masao Omata	4
11	Different Mixtures of Sodium Hyaluronate and Their Ability to Create Submucosal Fluid Cushions for Endoscopic Mucosal Resection 2004 ·Endoscopy ·Mitsuhiro Fujishiro, Naoya Yahagi, Koji Kashimura, Y. Mizushima, M. Oka, (unknown), Shintaro Enomoto, Naomi Kakushima, Atsushi Imagawa, Katsuya Kobayashi, Takuhei Hashimoto, Mikitaka Iguchi, Yasuhito Shimizu, M. Ichinose, Masao Omata	101
12	Endoscopic Spraying of Sucralfate Using the Outer Sheath of a Clipping Device 2002 ·Endoscopy ·Mitsuhiro Fujishiro, Naoya Yahagi, M. Oka, Shintaro Enomoto, Nobutake Yamamichi, Naomi Kakushima, Ayako Tateishi, T. Wada, Y. Shimizu, M. Ichinose, Takeshi Kawabe, Masao Omata	10
13	Hepatocyte Growth Factor Activator: A Possible Regulator of Morphogenesis during Fetal Development of the Rat Gastrointestinal Tract 1998 ·Biochemical and Biophysical Research Communications ·Yasuo Matsubara, M. Ichinose, Naohisa Yahagi, Sachiyuki Tsukada, M. Oka, Kazumasa Miki, Satoshi Kimura, Masao Omata, K. Shiokawa, N Kitamura, Yoshihiro Kaneko, Hiroshi Fukamachi	40
14	Differentially expressed MHC class II-associated invariant chain in rat stomach pyloric mucosa with N-methyl-N-nitro-nitrosoguanidine exposure. 1997 ·PubMed ·(unknown), M. Oka, Masami Yamamoto, Takashi Ito, M. Ichinose, (unknown), M Tatematsu, Yoshiyuki Sakaki, Konrad Reske	13
15	Effects of Long-Term Omeprazole Treatment on Adult Rat Gastric Mucosa - Enhancement of the Epithelial Cell Proliferation and Suppression of Its Differentiation 1995 ·Biochemical and Biophysical Research Communications ·Nobuyuki Kakei, M. Ichinose, Masae Tatematsu, Masaru Shimizu, M. Oka, Naohisa Yahagi, (unknown), Kiyoshi Kurokawa, Satoshi Yonezawa, Chie Furihata, K. Shiokawa, Takashi Kageyama, K. Miki, Hiroshi Fukamachi	18

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