Hans‐Jacob Haga

2.4k total citations · 1 hit paper
29 papers, 1.7k citations indexed

About

Hans‐Jacob Haga is a scholar working on Rheumatology, Physiology and Pathology and Forensic Medicine. According to data from OpenAlex, Hans‐Jacob Haga has authored 29 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Rheumatology, 12 papers in Physiology and 10 papers in Pathology and Forensic Medicine. Recurrent topics in Hans‐Jacob Haga's work include Systemic Lupus Erythematosus Research (10 papers), Salivary Gland Disorders and Functions (8 papers) and Biomedical Research and Pathophysiology (5 papers). Hans‐Jacob Haga is often cited by papers focused on Systemic Lupus Erythematosus Research (10 papers), Salivary Gland Disorders and Functions (8 papers) and Biomedical Research and Pathophysiology (5 papers). Hans‐Jacob Haga collaborates with scholars based in Norway, Denmark and United Kingdom. Hans‐Jacob Haga's co-authors include Munther A. Khamashta, Ricard Cervera, Gian Domenico Sebastiani, Enrique de Ramón, AO. Aydintug, Paz Lavilla, M Ingelmo, Mauro Galeazzi, Josep Font and Anna Jędryka-Góral and has published in prestigious journals such as Kidney International, The Journal of Infectious Diseases and Medicine.

In The Last Decade

Hans‐Jacob Haga

27 papers receiving 1.7k citations

Hit Papers

1 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.

Systemic Lupus Erythematosus

1993 706 citations Ricard Cervera, Munther A. Khamashta et al. Medicine profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Hans‐Jacob Haga Norway	14	1.1k	678	317	296	273	29	1.7k
Akira Sagawa Japan	17	630 0.6×	539 0.8×	233 0.7×	226 0.8×	137 0.5×	75	1.8k
Xavier Mariette France	13	671 0.6×	554 0.8×	270 0.9×	142 0.5×	217 0.8×	40	1.7k
Xiaofeng Zeng China	26	1.2k 1.1×	610 0.9×	246 0.8×	203 0.7×	215 0.8×	134	2.0k
H Chwalińska-Sadowska Poland	14	1.3k 1.2×	992 1.5×	271 0.9×	257 0.9×	69 0.3×	29	1.9k
A. J. G. Swaak Netherlands	28	1.6k 1.5×	1.2k 1.7×	554 1.7×	699 2.4×	138 0.5×	69	2.5k
Piersandro Riboldi Italy	20	1.0k 0.9×	546 0.8×	522 1.6×	152 0.5×	92 0.3×	50	1.5k
Marzena Olesińska Poland	21	934 0.9×	743 1.1×	394 1.2×	221 0.7×	78 0.3×	124	1.8k
A M Boerbooms Netherlands	24	834 0.8×	363 0.5×	462 1.5×	189 0.6×	100 0.4×	59	1.8k
Rodanthi C. Kitridou United States	15	798 0.7×	683 1.0×	183 0.6×	226 0.8×	72 0.3×	26	1.5k
François Chasset France	25	1.1k 1.0×	620 0.9×	199 0.6×	289 1.0×	119 0.4×	108	1.9k

Countries citing papers authored by Hans‐Jacob Haga

Since Specialization

Citations

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

Fields of papers citing papers by Hans‐Jacob Haga

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hans‐Jacob Haga. 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 Hans‐Jacob Haga. The network helps show where Hans‐Jacob Haga may publish in the future.

Co-authorship network of co-authors of Hans‐Jacob Haga

This figure shows the co-authorship network connecting the top 25 collaborators of Hans‐Jacob Haga. A scholar is included among the top collaborators of Hans‐Jacob Haga 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 Hans‐Jacob Haga. Hans‐Jacob Haga 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

Haga, Hans‐Jacob, et al.. (2012). A study of the prevalence of sicca symptoms and secondary Sjögren's syndrome in patients with rheumatoid arthritis, and its association to disease activity and treatment profile. International Journal of Rheumatic Diseases. 15(3). 284–288. 47 indexed citations

Haga, Hans‐Jacob, Øyvind Palm, & Elisabeth Peen. (2011). Prevalence of IgA class antibodies to cyclic citrullinated peptide in patients with inflammatory bowel disease (IBD). Clinical Rheumatology. 30(7). 955–957. 8 indexed citations

Haga, Hans‐Jacob, et al.. (2011). Prevalence of IgA class antibodies to cyclic citrullinated peptide (anti-CCP) in patients with primary Sjögren's syndrome, and its association to clinical manifestations. Clinical Rheumatology. 30(3). 369–372. 7 indexed citations

Haga, Hans‐Jacob, Clara Gram Gjesdal, Hege Svean Koksvik, et al.. (2005). Pregnancy outcome in patients with primary Sjögren's syndrome. a case-control study.. PubMed. 32(9). 1734–6. 23 indexed citations

Haga, Hans‐Jacob, et al.. (2004). Femoral and whole-body bone mineral density in middle-aged and older Norwegian men and women: suitability of the reference values. Osteoporosis International. 15(7). 525–34. 56 indexed citations

Johnsen, Villy, Øystein Førre, Hans‐Jacob Haga, et al.. (2003). Kombinasjonsterapi ved revmatoid artritt. Tidsskrift for Den Norske Laegeforening. 1 indexed citations

Madland, Tor Magne, M Hordvik, Hans‐Jacob Haga, Roland Jonsson, & Johan G. Brun. (2002). Leukocyte protein calprotectin and outcome in rheumatoid arthritis. Scandinavian Journal of Rheumatology. 31(6). 351–354. 32 indexed citations

Haga, Hans‐Jacob, et al.. (2000). Myalgi og høy senkning hos voksne. Tidsskrift for Den Norske Laegeforening.

Bolstad, Anne Isine, Anna Wargelius, Britt Nakken, Hans‐Jacob Haga, & Roland Jonsson. (2000). Fas and Fas ligand gene polymorphisms in primary Sjögren's syndrome.. PubMed. 27(10). 2397–405. 65 indexed citations

10.

Jonsson, Roland, et al.. (2000). Arvelighet og immunologi ved Sjögrens syndrom. Tidsskrift for Den Norske Laegeforening. 1 indexed citations

11.

Bolstad, Anne Isine, Hans‐Jacob Haga, Ralf Waßmuth, & Roland Jonsson. (2000). Monozygotic twins with primary Sjögren's syndrome.. PubMed. 27(9). 2264–6. 28 indexed citations

12.

Bendiksen, Signy, Marijke Van Ghelue, Ole Petter Rekvig, et al.. (2000). A longitudinal study of human cytomegalovirus serology and viruria fails to detect active viral infection in 20 systemic lupus erythematosus patients. Lupus. 9(2). 120–126. 27 indexed citations

13.

Cervera, Ricard, Munther A. Khamashta, Josep Font, et al.. (1999). Morbidity and Mortality in Systemic Lupus Erythematosus During a 5-Year Period: A Multicenter Prospective Study of 1,000 Patients. Medicine. 78(3). 167–175. 315 indexed citations

14.

Sundsfjord, Arnfinn, et al.. (1999). BK and JC Viruses in Patients with Systemic Lupus Erythematosus: Prevalent and Persistent BK Viruria, Sequence Stability of the Viral Regulatory Regions, and Nondetectable Viremia. The Journal of Infectious Diseases. 180(1). 1–9. 84 indexed citations

15.

Halse, Anne‐Kristine, et al.. (1998). Detection of anti‐Ro/SSA and anti‐La/SSB autoantibody‐producing cells in salivary glands from patients with Sjögren's syndrome. Arthritis & Rheumatism. 41(12). 2238–2248. 7 indexed citations

16.

Cervera, Ricard, Munther A. Khamashta, Josep Font, et al.. (1993). Systemic Lupus Erythematosus. Medicine. 72(2). 113–124. 706 indexed citations breakdown →

17.

Haga, Hans‐Jacob, Constantinos Christopoulos, Samuel J. Machin, Munther A. Khamashta, & Graham R.V. Hughes. (1992). Lack of Specific Binding of Anticardiolipin Antibodies to Intact Platelets. Lupus. 1(6). 387–390. 1 indexed citations

18.

Haga, Hans‐Jacob. (1989). Kidney lysosomes. International Journal of Biochemistry. 21(4). 343–345. 6 indexed citations

19.

Haga, Hans‐Jacob, et al.. (1988). Changes in lysosome populations in the rat kidney cortex induced by experimental proteinuria. International Journal of Biochemistry. 20(8). 793–800. 5 indexed citations

20.

Haga, Hans‐Jacob, et al.. (1987). Changes in Lysosome Populations in the Rat Kidney Cortex Induced by Passive Heymann Glomerulonephritis. Kidney & Blood Pressure Research. 10(5). 249–260. 1 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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