Kei Tamai

601 total citations
38 papers, 432 citations indexed

About

Kei Tamai is a scholar working on Pulmonary and Respiratory Medicine, Pediatrics, Perinatology and Child Health and Surgery. According to data from OpenAlex, Kei Tamai has authored 38 papers receiving a total of 432 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Pulmonary and Respiratory Medicine, 14 papers in Pediatrics, Perinatology and Child Health and 11 papers in Surgery. Recurrent topics in Kei Tamai's work include Neonatal Respiratory Health Research (13 papers), Infant Development and Preterm Care (9 papers) and Congenital Diaphragmatic Hernia Studies (3 papers). Kei Tamai is often cited by papers focused on Neonatal Respiratory Health Research (13 papers), Infant Development and Preterm Care (9 papers) and Congenital Diaphragmatic Hernia Studies (3 papers). Kei Tamai collaborates with scholars based in Japan and Canada. Kei Tamai's co-authors include Koichi Saotome, Minoru Yamato, Hiroya Sakai, Akihito Takeuchi, Makoto Nakamura, Misao Kageyama, Masataka Uetani, Gen Nishimura, Jun Takahashi and Jun‐ichiro Hamada and has published in prestigious journals such as The Journal of Comparative Neurology, Scientific Reports and Infection and Immunity.

In The Last Decade

Kei Tamai

31 papers receiving 411 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kei Tamai Japan 12 141 120 82 80 67 38 432
William G. Mackenzie United States 18 274 1.9× 117 1.0× 123 1.5× 50 0.6× 46 0.7× 42 781
Danielle Katz United States 15 189 1.3× 48 0.4× 107 1.3× 54 0.7× 63 0.9× 26 588
Merih İş Türkiye 14 257 1.8× 77 0.6× 82 1.0× 47 0.6× 16 0.2× 55 551
A. Karagiannis Greece 12 189 1.3× 32 0.3× 107 1.3× 34 0.4× 53 0.8× 24 450
I‐Chang Su Taiwan 15 134 1.0× 45 0.4× 66 0.8× 13 0.2× 18 0.3× 49 686
Yuval Karmon United States 16 33 0.2× 76 0.6× 114 1.4× 24 0.3× 33 0.5× 33 606
Torulf Widhe Sweden 9 267 1.9× 130 1.1× 178 2.2× 28 0.3× 145 2.2× 15 621
Lea Niemitukia Finland 11 334 2.4× 206 1.7× 99 1.2× 14 0.2× 78 1.2× 19 821
Murat Şakir Ekşi̇ Türkiye 17 554 3.9× 43 0.4× 26 0.3× 42 0.5× 28 0.4× 110 985
Marian Mikhael United States 9 83 0.6× 87 0.7× 56 0.7× 89 1.1× 8 0.1× 15 475

Countries citing papers authored by Kei Tamai

Since Specialization
Citations

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

Fields of papers citing papers by Kei Tamai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kei Tamai

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

All Works

20 of 20 papers shown
1.
Tamai, Kei, Naomi Matsumoto, Takashi Mitsui, Hisashi Masuyama, & Takashi Yorifuji. (2025). Association between cesarean delivery and childhood allergic diseases in a longitudinal population-based birth cohort from Japan. Scientific Reports. 15(1). 19206–19206.
2.
Tamai, Kei, Naomi Matsumoto, Takashi Yorifuji, et al.. (2024). Delivery room intubation and neurodevelopment among extremely preterm infants. Pediatric Research. 95(7). 1897–1902. 2 indexed citations
3.
4.
Tamai, Kei, Naomi Matsumoto, Takashi Yorifuji, et al.. (2023). Delivery room intubation and severe intraventricular hemorrhage in extremely preterm infants without low Apgar scores: A Japanese retrospective cohort study. Scientific Reports. 13(1). 14990–14990. 1 indexed citations
5.
Takeuchi, Akihito, Kei Tamai, Makoto Nakamura, et al.. (2022). Neonatal sepsis and Kawasaki disease. European Journal of Pediatrics. 181(8). 2927–2933. 5 indexed citations
6.
Namba, Fumihiko, Seiji Yoshimoto, Kaoru Okazaki, et al.. (2021). Cytomegalovirus‐related sepsis‐like syndrome in very premature infants in Japan. Pediatrics International. 64(1). e14994–e14994. 6 indexed citations
7.
Takeuchi, Akihito, Naomi Matsumoto, Kei Tamai, et al.. (2021). Preterm birth and Kawasaki disease: a nationwide Japanese population-based study. Pediatric Research. 92(2). 557–562. 10 indexed citations
8.
Takeuchi, Akihito, Takashi Yorifuji, Mariko Hattori, et al.. (2019). Catch-up growth and behavioral development among preterm, small-for-gestational-age children: A nationwide Japanese population-based study. Brain and Development. 41(5). 397–405. 10 indexed citations
9.
Tamai, Kei, Masahiro Nishihara, Katsuya Hirata, et al.. (2018). Physical fitness of non-disabled school-aged children born with extremely low birth weights. Early Human Development. 128. 6–11. 2 indexed citations
10.
Tamai, Kei, Katsuhiko Tada, Akihito Takeuchi, et al.. (2018). Fetal ultrasonographic findings including cerebral hyperechogenicity in a patient with non‐lethal form of Raine syndrome. American Journal of Medical Genetics Part A. 176(3). 682–686. 13 indexed citations
11.
Tamai, Kei, Takashi Yorifuji, Akihito Takeuchi, et al.. (2018). Associations of gestational age with child health and neurodevelopment among twins: A nationwide Japanese population-based study. Early Human Development. 128. 41–47. 7 indexed citations
12.
Tamai, Kei, Misao Kageyama, Akihito Takeuchi, Makoto Nakamura, & K. HIRAI. (2018). Prominent Eustachian valve in a preterm infant causing cyanosis. Pediatrics International. 60(3). 311–313. 2 indexed citations
13.
Yoshinaga, Harumi, et al.. (2003). EEG in childhood absence epilepsy. Seizure. 13(5). 296–302. 30 indexed citations
14.
Sakai, Hiroya, et al.. (1999). Para-articular chondroma and osteochondroma of the infrapatellar fat pad: a report of three cases. International Orthopaedics. 23(2). 114–117. 43 indexed citations
15.
Xu, Daigen, et al.. (1997). Distribution of neuronal apoptosis inhibitory protein‐like immunoreactivity in the rat central nervous system. The Journal of Comparative Neurology. 382(2). 247–259. 2 indexed citations
16.
Nishimura, Gen, Minoru Yamato, Kei Tamai, Jun Takahashi, & Masataka Uetani. (1997). MR findings in iliotibial band syndrome. Skeletal Radiology. 26(9). 533–537. 47 indexed citations
17.
Yoshio, Taku, J Masuyama, Kei Tamai, et al.. (1995). Quantification of antiribosomal P0 protein antibodies by ELISA with recombinant P0 fusion protein and their association with central nervous system disease in systemic lupus erythematosus.. PubMed. 22(9). 1681–7. 43 indexed citations
18.
Tamai, Kei, et al.. (1994). Substance P- and calcitonin gene-related peptide-immunofluorescent nerves in the repair of experimental bone defects. International Orthopaedics. 18(5). 317–24. 47 indexed citations
19.
Tamai, Kei, T. Kurokawa, & Ichiro Matsubara. (1989). In situ observation of adjustment of sarcomere length in skeletal muscle under sustained stretch.. PubMed. 63(12). 1558–63. 15 indexed citations
20.
Tamai, Kei. (1988). [Morphometrical analysis over a 24-hour period in the rat suprachiasmatic nucleus under the different lighting conditions].. PubMed. 79(12). 879–905. 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.

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