This map shows the geographic impact of H Keller'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 H Keller with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites H Keller more than expected).
This network shows the impact of papers produced by H Keller. 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 H Keller. The network helps show where H Keller may publish in the future.
Co-authorship network of co-authors of H Keller
This figure shows the co-authorship network connecting the top 25 collaborators of H Keller.
A scholar is included among the top collaborators of H Keller 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 H Keller. H Keller is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
All Works
14 of 14 papers shown
1.
Galán, Pilar, Paul Preziosi, M. J. Richard, et al.. (1997). Effects of trace element and/or vitamin supplementation on vitamin and mineral status, free radical metabolism and immunological markers in elderly long term-hospitalized subjects. Geriatric Network MIN. VIT. AOX.. PubMed. 67(6). 450–60.44 indexed citations
2.
Galán, Pilar, et al.. (1996). Micronutrient status in elderly people. Geriatrie/Min. Vit. Aux Network.. PubMed. 66(1). 71–6.36 indexed citations
Herçberg, Serge, Paul Preziosi, Pilar Galán, et al.. (1994). Vitamin status of a healthy French population: dietary intakes and biochemical markers.. PubMed. 64(3). 220–32.100 indexed citations
Keller, H, et al.. (1991). Simultaneous determination of retinol, tocopherols, carotenes and lycopene in plasma by means of high-performance liquid chromatography on reversed phase.. PubMed. 61(3). 232–8.267 indexed citations
8.
Vuilleumier, J. P., H Keller, & E. Keck. (1990). Clinical chemical methods for the routine assessment of the vitamin status in human populations. Part III: The apoenzyme stimulation tests for vitamin B1, B2 and B6 adapted to the Cobas-Bio analyzer.. PubMed. 60(2). 126–35.31 indexed citations
Vuilleumier, J. P., et al.. (1983). Clinical chemical methods for the routine assessment of the vitamin status in human populations. Part I: The fat-soluble vitamins A and E, and beta-carotene.. PubMed. 53(3). 265–72.210 indexed citations
12.
Frey, H.‐H. & H Keller. (1980). Bioavailability of benzimidazole anthelmintics from different pharmaceutical preparations in the horse.. 61(3). 234–240.1 indexed citations
13.
Cordes, U., H Keller, & J. Beyer. (1975). [Diagnostic value of plasma catecholamine determination in primary adrenal cortex insufficiency].. PubMed. 81. 1540–4.1 indexed citations
14.
Keller, H, H. Isliker, & H. Aebi. (1957). [Turnover of properidine in rabbits].. PubMed. 15(2). C21–2.2 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.