A. Ullman

4.4k total citations · 2 hit papers
42 papers, 3.2k citations indexed

About

A. Ullman is a scholar working on Physiology, Pulmonary and Respiratory Medicine and Animal Science and Zoology. According to data from OpenAlex, A. Ullman has authored 42 papers receiving a total of 3.2k indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Physiology, 29 papers in Pulmonary and Respiratory Medicine and 6 papers in Animal Science and Zoology. Recurrent topics in A. Ullman's work include Asthma and respiratory diseases (31 papers), Inhalation and Respiratory Drug Delivery (16 papers) and Respiratory and Cough-Related Research (14 papers). A. Ullman is often cited by papers focused on Asthma and respiratory diseases (31 papers), Inhalation and Respiratory Drug Delivery (16 papers) and Respiratory and Cough-Related Research (14 papers). A. Ullman collaborates with scholars based in Sweden, United States and Canada. A. Ullman's co-authors include Paul M. O’Byrne, Romain Pauwels, Peter J. Barnes, Anne E. Tattersfield, Dirkje S. Postma, Claes-Göran Löfdahl, N Svedmyr, Søren Pedersen, Wan C. Tan and Carl Johan Lamm and has published in prestigious journals such as New England Journal of Medicine, The Lancet and American Journal of Respiratory and Critical Care Medicine.

In The Last Decade

A. Ullman

40 papers receiving 3.0k 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.

Effect of Inhaled Formoterol and Budesonide on Exacerbations of Asthma

1997 1.2k citations Romain Pauwels, Claes-Göran Löfdahl et al. profile →
Early intervention with budesonide in mild persistent asthma: a randomised, double-blind trial

2003 554 citations Romain Pauwels, Søren Pedersen 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
A. Ullman Sweden	19	2.8k	2.5k	327	268	189	42	3.2k
J Orehek France	22	1.4k 0.5×	1.5k 0.6×	178 0.5×	55 0.2×	194 1.0×	75	2.3k
C L van Herwaarden Netherlands	16	685 0.2×	842 0.3×	42 0.1×	71 0.3×	116 0.6×	24	1.2k
Donald J. Kellerman United States	14	541 0.2×	527 0.2×	63 0.2×	65 0.2×	110 0.6×	29	1.1k
Carl Burgess New Zealand	18	504 0.2×	406 0.2×	52 0.2×	90 0.3×	110 0.6×	47	921
G Thiringer Sweden	18	373 0.1×	494 0.2×	33 0.1×	166 0.6×	72 0.4×	36	997
Morten Hostrup Denmark	29	932 0.3×	277 0.1×	19 0.1×	598 2.2×	383 2.0×	108	2.2k
Karen M. Silvers New Zealand	15	415 0.1×	230 0.1×	48 0.1×	22 0.1×	52 0.3×	17	1.3k
Xiaobin Wang United States	24	378 0.1×	322 0.1×	421 1.3×	2 0.0×	177 0.9×	50	1.6k
Madge Vickers United Kingdom	14	329 0.1×	140 0.1×	146 0.4×	10 0.0×	26 0.1×	23	1.2k
Gert S. Maritz South Africa	22	483 0.2×	772 0.3×	2 0.0×	20 0.1×	314 1.7×	51	1.9k

Countries citing papers authored by A. Ullman

Since Specialization

Citations

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

Fields of papers citing papers by A. Ullman

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of A. Ullman

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

Bäckman, Helena, Lowie E.G.W. Vanfleteren, Anne Lindberg, et al.. (2020). Decreased COPD prevalence in Sweden after decades of decrease in smoking. Respiratory Research. 21(1). 283–283. 30 indexed citations

Tan, Wan C., Carl Johan Lamm, Paul M. O’Byrne, et al.. (2006). Effectiveness of early budesonide intervention in Caucasian versus Asian patients with asthma: 3‐year results of the START study. Respirology. 11(6). 767–775. 7 indexed citations

Pauwels, Romain, Søren Pedersen, Wan C. Tan, et al.. (2003). Early intervention with budesonide in mild persistent asthma: a randomised, double-blind trial. The Lancet. 361(9363). 1071–1076. 554 indexed citations breakdown →

Tattersfield, Anne E., Dirkje S. Postma, Peter J. Barnes, et al.. (1999). Exacerbations of Asthma: A Descriptive Study of 425 Severe Exacerbations. American Journal of Respiratory and Critical Care Medicine. 160(2). 594–599. 295 indexed citations

Juniper, Elizabeth F., Klas Svensson, Paul M. O’Byrne, et al.. (1999). Asthma quality of life during 1 year of treatment with budesonide with or without formoterol. European Respiratory Journal. 14(5). 1038–1043. 116 indexed citations

Lofdahl, CG, L. Andersson, Eva Bondesson, et al.. (1997). Differences in bronchodilating potency of salbutamol in Turbuhaler as compared with a pressurized metered-dose inhaler formulation in patients with reversible airway obstruction. European Respiratory Journal. 10(11). 2474–2478. 40 indexed citations

Boorsma, Martin, et al.. (1996). Assessment of the relative systemic potency of inhaled fluticasone and budesonide. European Respiratory Journal. 9(7). 1427–1432. 80 indexed citations

Ullman, A.. (1995). β‐Adrenoceptor Agonists in Future Asthma Theraphy. Pharmacology & Toxicology. 77(s3). 36–39.

Lindén, Anders, A. Ullman, C.‐G. Löfdahl, & Bengt‐Eric Skoogh. (1993). Non‐adrenergic, non‐cholinergic neural activation in guinea‐pig bronchi: powerful and frequency‐dependent stabilizing effect on tone. British Journal of Pharmacology. 109(3). 845–851. 5 indexed citations

10.

Lötvall, Jan, Helen Lunde, A. Ullman, Hans Törnqvist, & N Svedmyr. (1992). Twelve months, treatment with inhaled salmeterol in asthmatic patients. Allergy. 47(5). 477–483. 47 indexed citations

11.

Ullman, A., et al.. (1992). Onset of action and duration of effect of formoterol and salmeterol compared to salbutamol in isolated guinea pig trachea with or without epithelium. Allergy. 47(4). 384–387. 22 indexed citations

12.

Lindén, Anders, et al.. (1992). In VitroTachyphylaxis to Isoprenaline in Guinea‐Pig Trachea: Influence of Theophylline?. Pharmacology & Toxicology. 71(1). 41–44. 2 indexed citations

13.

Lindén, Anders, A. Ullman, Bengt‐Eric Skoogh, & C.‐G. Löfdahl. (1992). The non‐adrenergic, non‐cholinergic response counteracts changes in guinea‐pig airway tone with and without sympathetic activation. British Journal of Pharmacology. 106(3). 616–622. 3 indexed citations

14.

Lindén, Anders, A. Ullman, Bengt‐Eric Skoogh, & C.-G. Löfdahl. (1991). Non-adrenergic, non-cholinergic regulation of guinea-pig airway smooth muscle-indomethacin-induced changes and segmental differences. Pulmonary Pharmacology. 4(3). 170–176. 14 indexed citations

15.

Lindén, Anders, C.-G. Löfdahl, A. Ullman, & Bengt‐Eric Skoogh. (1991). In vitrocharacteristics of spontaneous airway tone in the guinea‐pig. Acta Physiologica Scandinavica. 142(3). 351–357. 19 indexed citations

16.

Ullman, A., Jan Hedner, & N Svedmyr. (1990). Inhaled Salmeterol and Salbutamol in Asthmatic Patients: An Evaluation of Asthma Symptoms and the Possible Development of Tachyphylaxis. American Review of Respiratory Disease. 142(3). 571–575. 129 indexed citations

17.

Ullman, A., Giovanni Ciabattoni, C.‐G. Löfdahl, et al.. (1990). Epithelium-derived PGE2 inhibits the contractile response to cholinergic stimulation in isolated ferret trachea. Pulmonary Pharmacology. 3(3). 155–160. 17 indexed citations

18.

Ullman, M. David, et al.. (1990). Effects of growth hormone on muscle regeneration and IGF‐I concentration in old rats. Acta Physiologica Scandinavica. 140(4). 521–525. 29 indexed citations

19.

Ullman, A., C.-G. Löfdahl, N Svedmyr, & Bengt‐Eric Skoogh. (1990). Nerve Stimulation Releases Mucosa-derived Inhibitory Factors, Both Prostanoids and Nonprostanoids, in Isolated Ferret Trachea. American Review of Respiratory Disease. 141(3). 748–751. 8 indexed citations

20.

Hedner, Jan, A. Ullman, Carola Lemne, & N Svedmyr. (1989). Effects of dilevalol, a β-adrenoceptor antagonist with intrinsic sympathetic activity in asthmatic patients. Pulmonary Pharmacology. 2(3). 155–159. 5 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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