J. Haller

2.0k total citations · 1 hit paper
23 papers, 1.5k citations indexed

About

J. Haller is a scholar working on Neurology, Nutrition and Dietetics and Rheumatology. According to data from OpenAlex, J. Haller has authored 23 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Neurology, 7 papers in Nutrition and Dietetics and 4 papers in Rheumatology. Recurrent topics in J. Haller's work include Alcoholism and Thiamine Deficiency (7 papers), Vitamin C and Antioxidants Research (6 papers) and Folate and B Vitamins Research (4 papers). J. Haller is often cited by papers focused on Alcoholism and Thiamine Deficiency (7 papers), Vitamin C and Antioxidants Research (6 papers) and Folate and B Vitamins Research (4 papers). J. Haller collaborates with scholars based in Switzerland, United Kingdom and Netherlands. J. Haller's co-authors include M.R.H. Löwik, Henk van den Berg, C.P.G.M. de Groot, W.A. van Staveren, O Moreiras, R.P.J. van der Wielen, David Benton, M. Ferry, Peter Weber and U. Ullmann and has published in prestigious journals such as The Lancet, Psychopharmacology and The Journals of Gerontology Series A.

In The Last Decade

J. Haller

23 papers receiving 1.4k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Serum vitamin D concentrations among elderly people in Europe

1995 596 citations R.P.J. van der Wielen, C.P.G.M. de Groot et al. The Lancet profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
J. Haller Switzerland	18	692	391	326	292	272	23	1.5k
Leane Hoey United Kingdom	24	536 0.8×	371 0.9×	403 1.2×	470 1.6×	97 0.4×	64	2.0k
Vijay Ganji United States	23	575 0.8×	495 1.3×	535 1.6×	373 1.3×	91 0.3×	66	1.8k
M J Stampfer United States	10	195 0.3×	390 1.0×	568 1.7×	272 0.9×	118 0.4×	13	2.0k
Elske M. Brouwer‐Brolsma Netherlands	29	671 1.0×	390 1.0×	608 1.9×	665 2.3×	248 0.9×	91	2.1k
Sandra Hirsch Chile	26	378 0.5×	409 1.0×	192 0.6×	1.1k 3.8×	171 0.6×	105	2.6k
Naghmeh Mirhosseini Iran	30	605 0.9×	465 1.2×	393 1.2×	571 2.0×	103 0.4×	64	2.5k
M. Kyla Shea United States	34	775 1.1×	1.8k 4.5×	400 1.2×	694 2.4×	344 1.3×	87	3.3k
Hyung Joon Yoo South Korea	23	296 0.4×	294 0.8×	398 1.2×	523 1.8×	218 0.8×	91	2.4k
M. Ferry France	27	116 0.2×	615 1.6×	675 2.1×	947 3.2×	72 0.3×	75	2.0k
Pedro Andrés Spain	23	129 0.2×	550 1.4×	814 2.5×	521 1.8×	37 0.1×	82	1.8k

Countries citing papers authored by J. Haller

Since Specialization

Citations

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

Fields of papers citing papers by J. Haller

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J. Haller

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

1.

Ullmann, U., J. Haller, G.C.M. Bakker, Elizabeth J. Brink, & Peter Weber. (2005). Epigallocatechin gallate (EGCG) (TEAVIGO™) does not impair nonhaem-iron absorption in man. Phytomedicine. 12(6-7). 410–415. 28 indexed citations

2.

Eussen, Simone J. P. M., M. Ferry, Isabelle Hininger‐Favier, et al.. (2002). Five year changes in mental health and associations with vitamin B12/folate status of elderly Europeans.. PubMed. 6(1). 43–50. 35 indexed citations

3.

Contois, John H., Alan H.B. Wu, Zemin Li, et al.. (2000). Distribution of serum apolipoproteins A-I and B and lipoprotein(a) in European elderly. Clinica Chimica Acta. 295(1-2). 1–12. 7 indexed citations

4.

Suter, P. M., et al.. (2000). Diuretic use: a risk for subclinical thiamine deficiency in elderly patients.. PubMed. 4(2). 69–71. 37 indexed citations

5.

Cockle, Sarah, et al.. (2000). The influence of multivitamins on cognitive function and mood in the elderly. Aging & Mental Health. 4(4). 339–353. 30 indexed citations

6.

Schlettwein-Gsell, D, et al.. (1999). Nährstoffaufnahme bei gesunden Betagten. Zeitschrift für Gerontologie und Geriatrie. 32(S1). S1–S6. 3 indexed citations

7.

Smith, Andrew, et al.. (1999). Vitamin C, Mood and Cognitive Functioning in the Elderly. Nutritional Neuroscience. 2(4). 249–256. 24 indexed citations

8.

Smith, Andrew, et al.. (1999). Anti‐oxidant vitamins and mental performance of the elderly. Human Psychopharmacology Clinical and Experimental. 14(7). 459–471. 2 indexed citations

9.

Buzina, R, et al.. (1998). Ageing, nutritional status and immune response.. PubMed. 68(2). 133–41. 30 indexed citations

10.

Benton, David, et al.. (1997). Thiamine supplementation mood and cognitive functioning. Psychopharmacology. 129(1). 66–71. 77 indexed citations

11.

Benton, David, et al.. (1997). The vitamin status of young British adults.. PubMed. 67(1). 34–40. 46 indexed citations

12.

Haller, J., et al.. (1996). Changes in the vitamin status of elderly Europeans: plasma vitamins A, E, B-6, B-12, folic acid and carotenoids.. European Journal of Clinical Nutrition. 50. 40 indexed citations

13.

Haller, J., R.M. Weggemans, Magnus Ferry, & Y. Guigoz. (1996). Mental health: minimental state examination and geriatric depression score of elderly Europeans in the SENECA study of 1993.. PubMed. 50 Suppl 2. S112–6. 49 indexed citations

14.

Widen, Raymond, M.R.H. Löwik, J. Haller, et al.. (1996). Vitamin B-6 Malnutrition Among Elderly Europeans: The SENECA Study. The Journals of Gerontology Series A. 51A(6). B417–B424. 17 indexed citations

15.

Haller, J., et al.. (1996). Changes in the vitamin status of elderly Europeans: plasma vitamins A, E, B-6, B-12, folic acid and carotenoids. SENECA Investigators.. PubMed. 50 Suppl 2. S32–46. 40 indexed citations

16.

Wielen, R.P.J. van der, C.P.G.M. de Groot, W.A. van Staveren, et al.. (1995). Serum vitamin D concentrations among elderly people in Europe. The Lancet. 346(8969). 207–210. 596 indexed citations breakdown →

17.

Benton, David, et al.. (1995). The impact of long-term vitamin supplementation on cognitive functioning. Psychopharmacology. 117(3). 298–305. 43 indexed citations

18.

Benton, David, et al.. (1995). Vitamin Supplementation for 1 Year Improves Mood. Neuropsychobiology. 32(2). 98–105. 80 indexed citations

19.

Haller, J., M.R.H. Löwik, M. Ferry, & A Ferro-Luzzi. (1991). Nutritional status: blood vitamins A, E, B6, B12, folic acid and carotene. Euronut SENECA investigators.. PubMed. 45 Suppl 3. 63–82. 40 indexed citations

20.

Hindmarch, I., J. Haller, N. Sherwood, & John S. Kerr. (1990). Comparison of Five Anxiolytic Benzodiazepines on Measures of Psychomotor Performance and Sleep. Neuropsychobiology. 24(2). 84–89. 22 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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