H Ullén

1.3k total citations
34 papers, 1.0k citations indexed

About

H Ullén is a scholar working on Dermatology, Health, Toxicology and Mutagenesis and Oncology. According to data from OpenAlex, H Ullén has authored 34 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Dermatology, 14 papers in Health, Toxicology and Mutagenesis and 5 papers in Oncology. Recurrent topics in H Ullén's work include Skin Protection and Aging (14 papers), Urban Green Space and Health (8 papers) and Indoor Air Quality and Microbial Exposure (6 papers). H Ullén is often cited by papers focused on Skin Protection and Aging (14 papers), Urban Green Space and Health (8 papers) and Indoor Air Quality and Microbial Exposure (6 papers). H Ullén collaborates with scholars based in Sweden, Bosnia and Herzegovina and Ukraine. H Ullén's co-authors include Richard Bränström, Sveinbjörn Kristjánsson, Yvonne Brandberg, C Boldeman, B. Jansson, Lars‐Erik Holm, Lennart Sjöberg, Bo Nilsson, Henrik Dal and Ylva Rodvall and has published in prestigious journals such as Journal of the American Academy of Dermatology, European Journal of Cancer and Cancer Letters.

In The Last Decade

H Ullén

34 papers receiving 950 citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
H Ullén 679 374 250 154 103 34 1.0k
Jerod L. Stapleton 664 1.0× 330 0.9× 352 1.4× 196 1.3× 72 0.7× 80 1.2k
Susan Darlow 205 0.3× 101 0.3× 68 0.3× 45 0.3× 25 0.2× 31 672
Ylva Rodvall 188 0.3× 178 0.5× 149 0.6× 127 0.8× 46 0.4× 26 673
Gerald N. Goldberg 169 0.2× 19 0.1× 141 0.6× 80 0.5× 25 0.2× 18 461
Thomas Stewart 95 0.1× 10 0.0× 168 0.7× 62 0.4× 20 0.2× 57 985
Amelia K. Smit 58 0.1× 26 0.1× 129 0.5× 20 0.1× 16 0.2× 47 421
Elizabeth Shaughnessy 119 0.2× 9 0.0× 211 0.8× 43 0.3× 16 0.2× 46 974
Jada G. Hamilton 42 0.1× 22 0.1× 213 0.9× 49 0.3× 9 0.1× 74 1.3k
Kevin White 53 0.1× 16 0.0× 43 0.2× 45 0.3× 16 0.2× 55 665
Hazel Κ. Bell 144 0.2× 6 0.0× 111 0.4× 109 0.7× 22 0.2× 66 503

Countries citing papers authored by H Ullén

Since Specialization
Citations

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

Fields of papers citing papers by H Ullén

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of H Ullén

This figure shows the co-authorship network connecting the top 25 collaborators of H Ullén. A scholar is included among the top collaborators of H Ullén 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 Ullén. H Ullén 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.
Bränström, Richard, Sveinbjörn Kristjánsson, & H Ullén. (2005). Risk perception, optimistic bias, and readiness to change sun related behaviour. European Journal of Public Health. 16(5). 492–497. 87 indexed citations
2.
Kristjánsson, Sveinbjörn, H Ullén, & Ásgeir R. Helgason. (2004). The importance of assessing the readiness to change sun-protection behaviours: a population-based study. European Journal of Cancer. 40(18). 2773–2780. 34 indexed citations
3.
Bränström, Richard, H Ullén, & Yvonne Brandberg. (2003). A randomised population-based intervention to examine the effects of the ultraviolet index on tanning behaviour. European Journal of Cancer. 39(7). 968–974. 29 indexed citations
4.
Ullén, H & E. Björkholm. (2003). Localized scleroderma in a woman irradiated at two sites for endometrial and breast carcinoma: A case history and a review of the literature. International Journal of Gynecological Cancer. 13(1). 77–82. 29 indexed citations
5.
Nilsson, Gunnar, et al.. (2003). SKIN DISEASES CAUSED BY ULTRAVIOLET RADIATION: THE COST OF ILLNESS. International Journal of Technology Assessment in Health Care. 19(4). 724–730. 13 indexed citations
6.
Lindelöf, Bernt, Fredrik Granath, Henrik Dal, et al.. (2003). Sun Habits in Kidney Transplant Recipients with Skin Cancer: A Case-control Study of Possible Causative Factors. Acta Dermato Venereologica. 83(3). 189–193. 30 indexed citations
7.
Kristjánsson, Sveinbjörn, Richard Bränström, H Ullén, & Ásgeir R. Helgason. (2003). Transtheoretical model: investigation of adolescentsʼ sunbathing behaviour. European Journal of Cancer Prevention. 12(6). 501–508. 17 indexed citations
8.
Ullén, H, et al.. (2002). Focusing management in implementing a smoking ban in a university hospital in Sweden. European Journal of Cancer Prevention. 11(2). 165–170. 4 indexed citations
9.
Bränström, Richard, Mari‐Anne Hedblad, Ingvar Krakau, & H Ullén. (2002). Laypersons' perceptual discrimination of pigmented skin lesions. Journal of the American Academy of Dermatology. 46(5). 667–673. 37 indexed citations
10.
Bränström, Richard, Sveinbjörn Kristjánsson, H Ullén, & Yvonne Brandberg. (2002). Stability of questionnaire items measuring behaviours, attitudes and stages of change related to sun exposure. Melanoma Research. 12(5). 513–519. 62 indexed citations
11.
Bränström, Richard, Yvonne Brandberg, Lars‐Erik Holm, Lennart Sjöberg, & H Ullén. (2001). Beliefs, knowledge and attitudes as predictors of sunbathing habits and use of sun protection among Swedish adolescents. European Journal of Cancer Prevention. 10(4). 337–345. 66 indexed citations
12.
Boldeman, C, Richard Bränström, Henrik Dal, et al.. (2001). Tanning habits and sunburn in a Swedish population age 13–50 years. European Journal of Cancer. 37(18). 2441–2448. 97 indexed citations
13.
Kristjánsson, Sveinbjörn, Ásgeir R. Helgason, Inger Rosdahl, Lars‐Erik Holm, & H Ullén. (2001). Readiness to change sun-protective behaviour. European Journal of Cancer Prevention. 10(3). 289–296. 17 indexed citations
14.
Wester, Ulf, Cecilia Boldemann, B. Jansson, & H Ullén. (1999). Population UV-Dose and Skin Area—Do Sunbeds Rival the Sun?. Health Physics. 77(4). 436–440. 17 indexed citations
15.
Tillgren, Per, et al.. (1998). Maintaining a smoke-free policy: an observational and interview study at a university hospital in Sweden. European Journal of Cancer Prevention. 7(5). 403–408. 7 indexed citations
16.
Brandberg, Yvonne, H Ullén, Lennart Sjöberg, & Lars‐Erik Holm. (1998). Sunbathing and sunbed use related to self-image in a randomized sample of Swedish adolescents. European Journal of Cancer Prevention. 7(4). 321–329. 57 indexed citations
17.
Ullén, H, Katarina Augustsson, Catharina Gustavsson, & Gunnar Steineck. (1997). Supplementary iron intake and risk of cancer: reversed causality?. Cancer Letters. 114(1-2). 215–216. 19 indexed citations
18.
Boldeman, C, B. Jansson, Bo Nilsson, & H Ullén. (1997). Sunbed Use in Swedish Urban Adolescents Related to Behavioral Characteristics. Preventive Medicine. 26(1). 114–119. 66 indexed citations
19.
Boldeman, C, H Ullén, Eva Månsson‐Brahme, & Lars‐Erik Holm. (1993). Primary prevention of malignant melanoma in the Stockholm Cancer Prevention Programme. European Journal of Cancer Prevention. 2(6). 441–446. 21 indexed citations
20.
Ullén, H, et al.. (1986). Blood lymphocyte subsets in patients with primary intracranial tumours. Correlation to histological tumour type and anatomical site. Acta Neurochirurgica. 81(3-4). 100–105. 8 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Jerod L. Stapleton Breakdown of academic impact, for papers by Susan Darlow Breakdown of academic impact, for papers by Ylva Rodvall Breakdown of academic impact, for papers by Gerald N. Goldberg Breakdown of academic impact, for papers by Thomas Stewart Breakdown of academic impact, for papers by Amelia K. Smit Breakdown of academic impact, for papers by Elizabeth Shaughnessy Breakdown of academic impact, for papers by Jada G. Hamilton Breakdown of academic impact, for papers by Kevin White Breakdown of academic impact, for papers by Hazel Κ. Bell
Rankless by CCL
2026