I. Häkkinen

786 total citations
48 papers, 626 citations indexed

About

I. Häkkinen is a scholar working on Molecular Biology, Nutrition and Dietetics and Surgery. According to data from OpenAlex, I. Häkkinen has authored 48 papers receiving a total of 626 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Molecular Biology, 10 papers in Nutrition and Dietetics and 8 papers in Surgery. Recurrent topics in I. Häkkinen's work include Glycosylation and Glycoproteins Research (16 papers), Helicobacter pylori-related gastroenterology studies (7 papers) and Infant Nutrition and Health (6 papers). I. Häkkinen is often cited by papers focused on Glycosylation and Glycoproteins Research (16 papers), Helicobacter pylori-related gastroenterology studies (7 papers) and Infant Nutrition and Health (6 papers). I. Häkkinen collaborates with scholars based in Finland and United States. I. Häkkinen's co-authors include K. Hartiala, Osmo Järvi, Matti Laitio, Tuulikki Terho, Lauri Saxén, L. Kalevi Korhonen, C. Th Pederson, Erik Larsen, Pekka Halonen and H. Lang and has published in prestigious journals such as Nature, Cancer and Annals of Surgery.

In The Last Decade

I. Häkkinen

47 papers receiving 533 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
I. Häkkinen Finland 16 271 221 92 85 81 48 626
Elizabeth E. Miller United States 16 342 1.3× 61 0.3× 200 2.2× 139 1.6× 38 0.5× 51 968
J Agneray France 16 391 1.4× 75 0.3× 61 0.7× 81 1.0× 231 2.9× 75 778
J.A. Cabezas Spain 14 257 0.9× 86 0.4× 38 0.4× 33 0.4× 42 0.5× 51 578
N Triadou France 10 340 1.3× 125 0.6× 113 1.2× 169 2.0× 32 0.4× 15 762
Y.H. Liau United States 12 313 1.2× 121 0.5× 69 0.8× 21 0.2× 57 0.7× 44 489
William McDowell Germany 12 383 1.4× 71 0.3× 34 0.4× 53 0.6× 73 0.9× 25 764
K. F. McGeeney Ireland 15 251 0.9× 320 1.4× 118 1.3× 110 1.3× 31 0.4× 53 767
L. Svendsen Germany 13 199 0.7× 65 0.3× 40 0.4× 41 0.5× 34 0.4× 22 697
Jürgen Althoff Germany 17 216 0.8× 206 0.9× 16 0.2× 262 3.1× 68 0.8× 36 877
Richard H. Renston United States 11 190 0.7× 225 1.0× 60 0.7× 302 3.6× 57 0.7× 12 724

Countries citing papers authored by I. Häkkinen

Since Specialization
Citations

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

Fields of papers citing papers by I. Häkkinen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of I. Häkkinen

This figure shows the co-authorship network connecting the top 25 collaborators of I. Häkkinen. A scholar is included among the top collaborators of I. Häkkinen 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 I. Häkkinen. I. Häkkinen 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.
Häkkinen, I., et al.. (1997). The importance of self-observation of fecal blood in indicating a proper bowel examination.. PubMed. 21(3). 267–72. 2 indexed citations
2.
Häkkinen, I., et al.. (1994). Finding Colorectal Tumours with an Immunological Faecal Occult Blood Test in Symptomatic Primary Health Care Patients. Age and Ageing. 23(5). 365–370. 1 indexed citations
3.
Häkkinen, I., et al.. (1988). Screening of colorectal tumours using an improved faecal occult blood test. Quantitative aspects.. Gut. 29(9). 1194–1197. 7 indexed citations
4.
Helander, Ilkka M., E Nordman, I. Häkkinen, & Auli Toivanen. (1979). Prolonged BCG treatment of melanoma: does it suppress the immune capacity?. British Journal of Dermatology. 101(4). 421–427. 3 indexed citations
5.
Laitio, Matti & I. Häkkinen. (1975). Intestinal-type carcinoma of gallbladder.A histochemical and immunologic study. Cancer. 36(5). 1668–1674. 16 indexed citations
6.
Häkkinen, I.. (1974). Gastric Fetal Sulphoglycoprotein Antigen (FSA) and Blood Group Antigens A and B. International Archives of Allergy and Immunology. 47(3). 380–387. 4 indexed citations
7.
Häkkinen, I.. (1972). Foetal Sulphoglycoprotein Antigen (FSA) as a Possible Precursor of Alimentary Canal Cancers. Scandinavian Journal of Gastroenterology. 7(5). 483–488. 7 indexed citations
8.
Häkkinen, I.. (1970). A-like blood group antigen in gastric cancer cells of patients in blood groups Q or B.. PubMed. 44(5). 1183–93. 56 indexed citations
9.
Häkkinen, I. & Matti Laitio. (1970). Epithelial glycoproteins of human gallbladder. Immunological characterization.. PubMed. 90(2). 137–42. 18 indexed citations
10.
Häkkinen, I., et al.. (1968). Sulphoglycoprotein antigens in the human alimentary canal and gastric cancer. An immunohistological study. International Journal of Cancer. 3(5). 572–581. 55 indexed citations
11.
Häkkinen, I.. (1967). Differentiation of Antigenic Gastric Cancer Sulphopolysaccharides from Metaplastic ‘Intestinal’ type Sulphopolysaccharides. Scandinavian Journal of Gastroenterology. 2(1). 39–43. 16 indexed citations
12.
Häkkinen, I., et al.. (1967). The blood group activity of human gastric sulphoglycoproteins in patients with gastric cancer and normal controls.. PubMed. 2(6). 669–75. 23 indexed citations
13.
Häkkinen, I., K. Hartiala, & H. Lang. (1966). The Effect of Restraint on the Content of Acid Polysaccharides of Glandular Gastric Wall in Rat. Acta Physiologica Scandinavica. 66(3). 333–336. 20 indexed citations
14.
Terho, Tuulikki, K. Hartiala, & I. Häkkinen. (1966). Infra-red Spectroscopic Investigations of a New Acid Mucopolysaccharide isolated from Human Gastric Juice. Nature. 211(5045). 198–199. 7 indexed citations
15.
Häkkinen, I., K. Hartiala, Tuulikki Terho, et al.. (1965). The Fractionation and Characterisation of the Acid Polysaccharides of the Gastric Wall of the Dog.. Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry. 19. 800–806. 29 indexed citations
16.
Häkkinen, I., et al.. (1963). THE LOCALIZATION OF TETRACYCLINE IN THE METASTATIC CALCIFICATIONS IN THE STOMACH OF RAT INDUCED BY OVERDOSAGE OF DIHYDROTACHYSTEROL AND VITAMIN D3. Acta Pathologica Microbiologica Scandinavica. 59(4). 428–434. 11 indexed citations
17.
Häkkinen, I.. (1960). A Modification for washing the Benzidine Sulphate Precipitate in the Determination of Sulphate. Nature. 186(4720). 232–232. 2 indexed citations
18.
Häkkinen, I., et al.. (1959). Spectrophotometric determination of sulphate in serum and urine with barium chloranilate. Scandinavian Journal of Clinical and Laboratory Investigation. 11(3). 294–297. 18 indexed citations
19.
20.
Häkkinen, I.. (1958). The Fluorescence of Tetracycline in Rats Treated with Dihydrotachysterol. Acta Physiologica Scandinavica. 42(3-4). 282–287. 11 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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