John Sum

877 total citations
10 papers, 640 citations indexed

About

John Sum is a scholar working on Genetics, Molecular Biology and Pathology and Forensic Medicine. According to data from OpenAlex, John Sum has authored 10 papers receiving a total of 640 indexed citations (citations by other indexed papers that have themselves been cited), including 4 papers in Genetics, 2 papers in Molecular Biology and 2 papers in Pathology and Forensic Medicine. Recurrent topics in John Sum's work include Genomic variations and chromosomal abnormalities (2 papers), Bartonella species infections research (1 paper) and Neonatal and fetal brain pathology (1 paper). John Sum is often cited by papers focused on Genomic variations and chromosomal abnormalities (2 papers), Bartonella species infections research (1 paper) and Neonatal and fetal brain pathology (1 paper). John Sum collaborates with scholars based in United States. John Sum's co-authors include Martha J. Morrell, Anthony D. Wagner, Gary H. Glover, Jonathan B. Demb, John D. E. Gabrieli, Paula K. Shear, John E. Desmond, Jin S. Hahn, Els Ortibus and Dikran S. Horoupian and has published in prestigious journals such as SHILAP Revista de lepidopterología, Brain and Annals of Neurology.

In The Last Decade

John Sum

10 papers receiving 604 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
John Sum United States	7	354	168	127	117	65	10	640
Stefania Maria Bova Italy	16	215 0.6×	216 1.3×	188 1.5×	344 2.9×	73 1.1×	35	891
J.S.H. Vles Netherlands	17	271 0.8×	357 2.1×	91 0.7×	268 2.3×	192 3.0×	46	981
Eva Aring Sweden	13	92 0.3×	95 0.6×	173 1.4×	163 1.4×	15 0.2×	27	499
J. E. Jan Canada	11	172 0.5×	53 0.3×	208 1.6×	144 1.2×	30 0.5×	14	531
Ralph O. Suarez United States	11	304 0.9×	84 0.5×	207 1.6×	84 0.7×	21 0.3×	15	474
Stella de Bode United States	13	246 0.7×	388 2.3×	62 0.5×	245 2.1×	28 0.4×	20	640
Akie Miyamoto Japan	17	159 0.4×	178 1.1×	46 0.4×	157 1.3×	201 3.1×	49	732
Val Dunn United States	9	123 0.3×	79 0.5×	207 1.6×	84 0.7×	18 0.3×	13	540
Jacobiene W. Weber Netherlands	14	114 0.3×	223 1.3×	28 0.2×	237 2.0×	151 2.3×	31	652
Cristina Baldoli Italy	13	463 1.3×	70 0.4×	256 2.0×	433 3.7×	25 0.4×	42	1.1k

Countries citing papers authored by John Sum

Since Specialization

Citations

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

Fields of papers citing papers by John Sum

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of John Sum

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

All Works

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10 of 10 papers shown

1.

Sum, John, et al.. (2015). Unusual Presentation of Pelizaeus-Merzbacher Disease: Female Patient with Deletion of the Proteolipid Protein 1 Gene. SHILAP Revista de lepidopterología. 2015. 1–3. 7 indexed citations

2.

McClure, P. D., et al.. (2015). Low gradient echo parenchymal signal in late infantile GM1 gangliosidosis. 2(2). 145–148. 1 indexed citations

3.

Sum, John, et al.. (2015). Deletion of 7q33-q35 in a Patient with Intellectual Disability and Dysmorphic Features: Further Characterization of 7q Interstitial Deletion Syndrome. SHILAP Revista de lepidopterología. 2015. 1–5. 5 indexed citations

4.

Sum, John, et al.. (2013). Deletion of 3p25.3 in a patient with intellectual disability and dysmorphic features with further definition of a critical region. American Journal of Medical Genetics Part A. 161(6). 1405–1408. 34 indexed citations

5.

Hahn, Jin S., John Sum, Dorsey Bass, Rebecca S. Crowley, & Dikran S. Horoupian. (1998). Celiac Disease Presenting as Gait Disturbance and Ataxia in Infancy. Journal of Child Neurology. 13(7). 351–353. 9 indexed citations

6.

Ortibus, Els, John Sum, & Jin S. Hahn. (1996). Predictive value of EEG for outcome and epilepsy following neonatal seizures. Electroencephalography and Clinical Neurophysiology. 98(3). 175–185. 92 indexed citations

7.

Desmond, John E., John Sum, Anthony D. Wagner, et al.. (1995). Functional MRI measurement of language Lateralization in Wada-tested patients. Brain. 118(6). 1411–1419. 397 indexed citations

8.

Sum, John & Martha J. Morrell. (1995). Predictive Value of the First Ictal Recording in Determining Localization of the Epileptogenic Region by Scalp/Sphenoidal EEG. Epilepsia. 36(10). 1033–1040. 6 indexed citations

9.

Chung, Marilda H., John Sum, Martha J. Morrell, & Dikran S. Horoupian. (1995). Intracerebral involvement in scleroderma en coup de sabre: Report of a case with neuropathologic findings. Annals of Neurology. 37(5). 679–681. 59 indexed citations

10.

Hahn, Jin S., et al.. (1994). Unusual MRI findings after status epilepticus due to cat-scratch disease. Pediatric Neurology. 10(3). 255–258. 30 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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