G. Hammersen

1.6k total citations
27 papers, 565 citations indexed

About

G. Hammersen is a scholar working on Clinical Biochemistry, Molecular Biology and Pediatrics, Perinatology and Child Health. According to data from OpenAlex, G. Hammersen has authored 27 papers receiving a total of 565 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Clinical Biochemistry, 7 papers in Molecular Biology and 7 papers in Pediatrics, Perinatology and Child Health. Recurrent topics in G. Hammersen's work include Metabolism and Genetic Disorders (13 papers), Neonatal Health and Biochemistry (6 papers) and Biochemical and Molecular Research (3 papers). G. Hammersen is often cited by papers focused on Metabolism and Genetic Disorders (13 papers), Neonatal Health and Biochemistry (6 papers) and Biochemical and Molecular Research (3 papers). G. Hammersen collaborates with scholars based in Germany, United States and Switzerland. G. Hammersen's co-authors include Harvey L. Levy, Horst Bickel, Robert Guthrie, Juliane Hoyer, Anita Rauch, Erik Harms, Cornelia Kraus, N. J. Brandt, O Giardini and Giacomo Corrado and has published in prestigious journals such as European Heart Journal, The American Journal of Human Genetics and The Journal of Pediatrics.

In The Last Decade

G. Hammersen

24 papers receiving 527 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
G. Hammersen Germany 12 218 217 127 106 76 27 565
Lorne E. Seargeant Canada 11 377 1.7× 251 1.2× 46 0.4× 75 0.7× 75 1.0× 14 679
Hy Goldman Canada 18 139 0.6× 90 0.4× 84 0.7× 252 2.4× 79 1.0× 37 806
Andrea Bordugo Italy 15 183 0.8× 164 0.8× 283 2.2× 69 0.7× 95 1.3× 35 670
Patricia R. Jennings United Kingdom 16 810 3.7× 322 1.5× 140 1.1× 62 0.6× 82 1.1× 39 1.1k
Gen Isshiki Japan 19 267 1.2× 254 1.2× 88 0.7× 164 1.5× 141 1.9× 70 858
R. Gatti Italy 18 298 1.4× 124 0.6× 75 0.6× 113 1.1× 395 5.2× 51 796
T Momoi Japan 11 166 0.8× 56 0.3× 63 0.5× 78 0.7× 39 0.5× 16 498
Néji Tebib Tunisia 14 164 0.8× 89 0.4× 47 0.4× 112 1.1× 164 2.2× 66 537
J. B. C. de Klerk Netherlands 21 569 2.6× 601 2.8× 89 0.7× 84 0.8× 364 4.8× 42 1.0k
Dorothy A. Gibbs United Kingdom 14 356 1.6× 59 0.3× 84 0.7× 41 0.4× 104 1.4× 30 584

Countries citing papers authored by G. Hammersen

Since Specialization
Citations

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

Fields of papers citing papers by G. Hammersen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of G. Hammersen

This figure shows the co-authorship network connecting the top 25 collaborators of G. Hammersen. A scholar is included among the top collaborators of G. Hammersen 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 G. Hammersen. G. Hammersen 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.
Hammersen, G., L. Wille, H. Schmidt, Peter Lutz, & Horst Bickel. (2015). Maple Syrup Urine Disease: Emergency Treatment of the Neonate. PubMed. 9. 84–89.
2.
Pohlenz, Joachim, et al.. (2013). Ultrasound findings in congenital hypothyroidism due to dyshormonogenesis. Ultraschall in der Medizin - European Journal of Ultrasound. 34(S 01). 1 indexed citations
3.
Hammersen, G., et al.. (2011). Aortopulmonary window. European Heart Journal. 33(10). 1200–1200. 1 indexed citations
4.
Raue, Friedhelm, J. Pichl, Dirk Schnabel, et al.. (2011). Activating mutations in the calcium-sensing receptor: genetic and clinical spectrum in 25 patients with autosomal dominant hypocalcaemia - a German survey. Clinical Endocrinology. 75(6). 760–765. 64 indexed citations
5.
6.
Kranz, Christian, Jonas Denecke, Volker Debus, et al.. (2007). A Defect in Dolichol Phosphate Biosynthesis Causes a New Inherited Disorder with Death in Early Infancy. The American Journal of Human Genetics. 80(3). 433–440. 72 indexed citations
7.
Grote, Veit, Rüdiger von Kries, W Springer, et al.. (2007). Varicella‐related deaths in children and adolescents – Germany 2003–2004. Acta Paediatrica. 97(2). 187–192. 28 indexed citations
8.
Schrauder, Michael, G. Hammersen, Tamme W. Goecke, et al.. (2007). Fetal Adrenal Haemorrhage – Two-Dimensional and Three-Dimensional Imaging. Fetal Diagnosis and Therapy. 23(1). 72–75. 12 indexed citations
9.
Hammersen, G., et al.. (2006). CONGENITAL ALVEOLAR CAPILLARY DYSPLASIA WITH FAMILIARY MICROPHTHALMIA. Paediatric Respiratory Reviews. 7. S326–S326. 1 indexed citations
10.
11.
Trefz, Friedrich K., H. Schmidt, B. Tauscher, et al.. (1981). Improved prenatal diagnosis of methylmalonic acidemia: Mass fragmentography of methylmalonic acid in amniotic fluid and maternal urine. European Journal of Pediatrics. 137(3). 261–266. 9 indexed citations
12.
Hammersen, G. & L. Wille. (1981). [Technique for intraventricular application of antibiotics in bacterial meningitis of the newborn (author's transl)].. PubMed. 129(9). 525–8.
13.
Bickel, Horst, Robert Guthrie, & G. Hammersen. (1980). Neonatal Screening for Inborn Errors of Metabolism. 74 indexed citations
14.
Hammersen, G., et al.. (1979). Oculo-neural involvement in an enzymatically proven case of Niemann-Pick disease type B. European Journal of Pediatrics. 132(2). 77–84. 16 indexed citations
15.
Levy, Harvey L., Stephen J. Sepe, David S. Walton, et al.. (1978). Galactose-1-phosphate uridyl transferase deficiency due to Duarte/galactosemia combined variation: Clinical and biochemical studies. The Journal of Pediatrics. 92(3). 390–393. 33 indexed citations
16.
Hammersen, G., U. Wahn, & R. Zimmermann. (1978). [The significance of factor VII-deficiency in infancy and childhood (author's transl)].. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 126(6). 366–70. 1 indexed citations
17.
Hammersen, G., L. Wille, H. Schmidt, Peter Lutz, & Horst Bickel. (1978). Maple syrup urine disease: Treatment of the acutely ill newborn. European Journal of Pediatrics. 129(3). 157–165. 10 indexed citations
18.
Hammersen, G., Harvey L. Levy, Fredric D. Frigoletto, & Roseann Mandell. (1975). Comparison of galactose-1-phosphate uridyl transferase in fetal and adult tissues. Clinica Chimica Acta. 60(3). 281–284. 6 indexed citations
19.
Hammersen, G., Roseann Mandell, & Harvey L. Levy. (1975). Galactose—1—phosphate uridyl transferase in fibroblasts: Isozymes in normal and variant states. Annals of Human Genetics. 39(2). 147–150. 6 indexed citations
20.
Hammersen, G. & Harvey L. Levy. (1974). NEW VARIANT OF GALACTOSEMIA. Pediatric Research. 8(4). 389–389.

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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