Hiroshi Koga

1.2k total citations
74 papers, 817 citations indexed

About

Hiroshi Koga is a scholar working on Surgery, Pediatrics, Perinatology and Child Health and Epidemiology. According to data from OpenAlex, Hiroshi Koga has authored 74 papers receiving a total of 817 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Surgery, 10 papers in Pediatrics, Perinatology and Child Health and 9 papers in Epidemiology. Recurrent topics in Hiroshi Koga's work include Fluoride Effects and Removal (9 papers), Epilepsy research and treatment (4 papers) and Infectious Encephalopathies and Encephalitis (4 papers). Hiroshi Koga is often cited by papers focused on Fluoride Effects and Removal (9 papers), Epilepsy research and treatment (4 papers) and Infectious Encephalopathies and Encephalitis (4 papers). Hiroshi Koga collaborates with scholars based in Japan, United States and Austria. Hiroshi Koga's co-authors include Hiroko Yamamoto, Kenzi Hukuda, Kazuya Nokura, Tadashi Kobayashi, K. Aiki, Koichiro Sakai, Noboru Takahashi, On Matumura, Masataka Inoue and Tatsuro Mutoh and has published in prestigious journals such as PLoS ONE, The Science of The Total Environment and The Journal of Pediatrics.

In The Last Decade

Hiroshi Koga

70 papers receiving 782 citations

Peers

Countries citing papers authored by Hiroshi Koga

Since Specialization

Citations

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

Fields of papers citing papers by Hiroshi Koga

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hiroshi Koga

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

#	Work	Indexed citations
1	PURA-related neurodevelopmental disorders: a systematic review on genotype-phenotype correlations 2025 ·Journal of Medical Genetics ·Naoyuki Taniguchi, (unknown), (unknown), Toshiki Takenouchi, Kenjiro Kosaki, Hiroshi Koga	1
2	Impact of the COVID-19 pandemic on the epidemiology of other communicable diseases in Japan 2023 ·International Journal of Infectious Diseases ·(unknown), Takayuki Hoshina, Hiroshi Koga	23
3	Effect of Maternal Egg Intake During the Early Neonatal Period and Risk of Infant Egg Allergy at 12 Months Among Breastfeeding Mothers 2023 ·JAMA Network Open ·Ken‐ichi Nagakura, Sakura Sato, Wakako Shinahara, Hiroshi Kido, Hidetoshi Fujita, (unknown), (unknown), Masaki Futamura, Hiroshi Koga, (unknown), Hideo Kaneko, (unknown), (unknown), Kyohei Takahashi, Noriyuki Yanagida, Motohiro Ebisawa, Mitsuyoshi Urashima	5
4	Case Report: RNF213 variant and choroidal anastomosis as potential risk factors for early stroke in moyamoya syndrome associated with Down syndrome 2023 ·Frontiers in Pediatrics ·Keisuke Yamamoto, Yasuyuki Kaku, Hiroshi Koga	1
5	Risk factors for acute encephalitis and early seizure recurrence in complex febrile seizures 2022 ·European Journal of Pediatrics ·Kenta Kajiwara, Hiroshi Koga	7
6	Recurrent Tolosa-Hunt Syndrome in a Child Accompanied by Idiopathic Aseptic Meningitis 2021 ·Pediatric Neurology ·(unknown), (unknown), Hiroshi Koga	1
7	Correlation of Coronary Artery Abnormalities with Fever Pattern in Patients with Kawasaki Disease 2021 ·The Journal of Pediatrics ·Atsushi Tanaka, (unknown), Takayuki Hoshina, Hiroshi Koga	2
8	Optimal Doses of H1 Antihistamines Do Not Increase Susceptibility to Febrile Convulsions in Children 2018 ·Pediatric Neurology ·(unknown), (unknown), Hiroshi Koga	2
9	Relationship between birth weight to placental weight ratio and major congenital anomalies in Japan 2018 ·PLoS ONE ·(unknown), (unknown), Hiroshi Koga	9
10	Epidemiologic Research on Malformations Associated with Cleft Lip and Cleft Palate in Japan 2016 ·PLoS ONE ·Hiroshi Koga, Koichi Iida, Tomoki Maeda, (unknown), (unknown), (unknown)	8
11	Placental Mesenchymal Dysplasia and Fetal Hematologic Disorder 2013 ·Journal of Pediatric Hematology/Oncology ·Hiroshi Koga, (unknown), (unknown), (unknown)	12
12	Winged scapula in patients with myotonic dystrophy type 1 2012 ·Neuromuscular Disorders ·Tadanori Hamano, Tatsuro Mutoh, Masaaki Hirayama, Hidemasa Uematsu, Itsuro Higuchi, Hiroshi Koga, Fujio Umehara, Kiyonobu Komai, Masaru Kuriyama	5
13	Predisposition to Subdural Hemorrhage in X-Linked Myotubular Myopathy 2012 ·Pediatric Neurology ·Hiroshi Koga, Kenichi Miyako, (unknown), (unknown), Noboru Takahashi	4
14	Clinical expression in Pfeiffer syndrome type 2 and 3: Surveillance in Japan 2012 ·American Journal of Medical Genetics Part A ·Hiroshi Koga, (unknown), Takato Nakamoto, Kōichi Tanaka, Noboru Takahashi	12
15	Improving Circulatory Disturbance in Transient Abnormal Myelopoiesis 2011 ·Journal of Pediatric Hematology/Oncology ·Hiroshi Koga, (unknown), (unknown), (unknown), Noboru Takahashi	4
16	Intramedullary hemorrhage caused by arteriovenous malformation: A case of mixed lateral and medial medullary syndrome 2001 ·Journal of Stroke and Cerebrovascular Diseases ·Kazuya Nokura, (unknown), (unknown), (unknown), (unknown), (unknown), Kosei Ojika, Hiroshi Koga, Hiroko Yamamoto	5
17	Dialysis-related spinal canal stenosis: a clinicopathological study on amyloid deposition and its AGE modification 2000 ·Journal of the Neurological Sciences ·Kazuya Nokura, Hiroshi Koga, Hiroko Yamamoto, Akihiro Kimura, Hirofumi Tamai, (unknown), Nobuo Suzuki, Shigeru Miyazaki, Toshimitsu Niwa	24
18	Effect of MFP/Bamboo Salt Dentifrice on Fluoride Uptake and Acid Resistance of Bovine Enamel In Vitro 1998 ·Young Ho Kim, Hiroshi Koga, Takashi Matsukubo, Y Takaesu	1
19	Reversible limbic encephalitis caused by ovarian teratoma 1997 ·Acta Neurologica Scandinavica ·Kazuya Nokura, Hiroko Yamamoto, (unknown), Hiroshi Koga, (unknown), Koichiro Sakai	81
20	Mercury in soil derived from igneous rock in Northern Kyushu, Japan 1978 ·Soil Science & Plant Nutrition ·(unknown), (unknown), Hiroshi Koga	11

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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