This map shows the geographic impact of K 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 K Okada with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites K Okada more than expected).
This network shows the impact of papers produced by K 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 K Okada. The network helps show where K Okada may publish in the future.
Co-authorship network of co-authors of K Okada
This figure shows the co-authorship network connecting the top 25 collaborators of K Okada.
A scholar is included among the top collaborators of K 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 K Okada. K Okada is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Murata, Satoshi, Takeshi Taniguchi, Masahiko Takahashi, et al.. (2000). Tissue selectivity of KMD-3213, an alpha(1)-adrenoreceptor antagonist, in human prostate and vasculature.. PubMed. 164(2). 578–83.69 indexed citations
3.
Kanamaru, H, Nobuyuki Oyama, Hironobu Akino, & K Okada. (2000). [Evaluation of prostate cancer using FDG-PET].. PubMed. 46(11). 851–3.16 indexed citations
4.
Tanase, Kazuya, Masahiro Tawada, S Sawada, et al.. (2000). [Two cases of nephrogenic adenoma in the bladder diverticulum].. PubMed. 46(11). 815–7.1 indexed citations
Aoki, Y., Yoshiji Miwa, Yasutomo Suzuki, et al.. (1998). [A collision tumor between squamous cell carcinoma and malignant lymphoma of urinary bladder: a case report].. PubMed. 44(3). 179–82.5 indexed citations
9.
Mori, Hirotaka, et al.. (1998). Enhanced hepatocyte growth factor level in human prostate cancer treated with endocrine therapy.. PubMed. 13(1). 169–76.11 indexed citations
10.
Oyama, Nobuyuki, Hironobu Akino, H Kanamaru, & K Okada. (1998). [Fluorodeoxyglucose positron emission tomography in diagnosis of untreated prostate cancer].. PubMed. 56(8). 2052–5.11 indexed citations
11.
Yoshida, Osamu, Kenichi Oishi, Yoichi Mizutani, et al.. (1996). Effect of long-term administration of finasteride (MK-906), an inhibitor of 5 alpha-reductase, in patients with benign prostatic hyperplasia.. PubMed. 42(4). 323–31.2 indexed citations
12.
Suzuki, Yasuhíro, et al.. (1992). [A case report of renal cell carcinoma in a renal cyst].. PubMed. 38(2). 181–4.12 indexed citations
13.
Murata, Akihiro, et al.. (1990). [Cognitive function, cerebral blood flow and brain atrophy in olivo-ponto-cerebellar atrophy].. PubMed. 30(2). 157–63.1 indexed citations
14.
Fujita, Takashi, et al.. (1990). [Clinico-pathological investigation on frequency and prognosis in patients with incidental prostatic carcinoma: preliminary report].. PubMed. 36(1). 13–8.1 indexed citations
Sakahara, Harumi, K Endo, Tetsuo Nakashima, et al.. (1985). [Radioimmunoimaging using F(ab')2 fragment of monoclonal antibodies against human alpha-fetoprotein].. PubMed. 22(3). 377–82.1 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.