Pekka Klemi

3.8k total citations
99 papers, 3.1k citations indexed

About

Pekka Klemi is a scholar working on Oncology, Cancer Research and Pathology and Forensic Medicine. According to data from OpenAlex, Pekka Klemi has authored 99 papers receiving a total of 3.1k indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Oncology, 33 papers in Cancer Research and 23 papers in Pathology and Forensic Medicine. Recurrent topics in Pekka Klemi's work include Cancer Genomics and Diagnostics (25 papers), Genetic factors in colorectal cancer (12 papers) and Ovarian cancer diagnosis and treatment (12 papers). Pekka Klemi is often cited by papers focused on Cancer Genomics and Diagnostics (25 papers), Genetic factors in colorectal cancer (12 papers) and Ovarian cancer diagnosis and treatment (12 papers). Pekka Klemi collaborates with scholars based in Finland, United States and United Kingdom. Pekka Klemi's co-authors include Heikki Joensuu, Reidar Grénman, Erkki Eerola, Heikki Minn, Kalle Alanen, Heikki Joensuu, Sakari Toikkanen, Aapo Ahonen, Sirpa Jalkanen and Veli‐Matti Kähäri and has published in prestigious journals such as Journal of Clinical Investigation, Cancer and American Journal Of Pathology.

In The Last Decade

Pekka Klemi

98 papers receiving 3.0k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Pekka Klemi Finland 30 1.1k 878 737 705 541 99 3.1k
Guido Coggi Italy 39 1.6k 1.5× 632 0.7× 1.7k 2.4× 825 1.2× 600 1.1× 102 4.4k
G. Gitsch Austria 35 1.0k 0.9× 811 0.9× 1.1k 1.6× 635 0.9× 340 0.6× 166 3.7k
Lucio Palombini Italy 25 786 0.7× 305 0.3× 663 0.9× 768 1.1× 554 1.0× 92 2.6k
Jo‐Anne Vergilio United States 26 1.1k 1.0× 679 0.8× 1.1k 1.5× 711 1.0× 922 1.7× 118 3.9k
Kathleen Cieply United States 30 857 0.8× 400 0.5× 940 1.3× 695 1.0× 257 0.5× 58 2.6k
Hadi Yaziji United States 27 1.8k 1.6× 680 0.8× 1.1k 1.5× 498 0.7× 703 1.3× 42 3.5k
Claes G. Tropé Norway 36 1.2k 1.1× 787 0.9× 1.4k 1.9× 592 0.8× 313 0.6× 149 3.8k
Simonetta Piana Italy 37 1.9k 1.7× 334 0.4× 924 1.3× 1.0k 1.4× 411 0.8× 213 4.5k
Cécile Colpaert Belgium 33 1.6k 1.5× 1.0k 1.2× 1.0k 1.4× 412 0.6× 651 1.2× 92 3.6k
Gwen Mazoujian United States 20 688 0.6× 548 0.6× 368 0.5× 347 0.5× 588 1.1× 31 2.0k

Countries citing papers authored by Pekka Klemi

Since Specialization
Citations

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

Fields of papers citing papers by Pekka Klemi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Pekka Klemi

This figure shows the co-authorship network connecting the top 25 collaborators of Pekka Klemi. A scholar is included among the top collaborators of Pekka Klemi 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 Pekka Klemi. Pekka Klemi 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.
Parvinen, Ilmo, Sirpa Heinävaara, Ahti Anttila, et al.. (2015). Mammography screening in three Finnish residential areas: comprehensive population-based study of breast cancer incidence and incidence-based mortality 1976–2009. British Journal of Cancer. 112(5). 918–924. 12 indexed citations
2.
Klemi, Pekka, Ilmo Leivo, Antti Mäkitie, et al.. (2009). Expression of matrix metalloproteinase‐1, ‐7, ‐9, ‐13, Ki‐67, and HER‐2 in epithelial‐myoepithelial salivary gland cancer. Head & Neck. 32(8). 1019–1027. 18 indexed citations
3.
Klemi, Pekka, Pirkko Hirsimäki, Tero Vahlberg, et al.. (2008). Matrix metalloproteinase (MMP)-1, -9 and -13 as prognostic factors in salivary gland cancer. Acta Oto-Laryngologica. 128(4). 482–490. 31 indexed citations
4.
Klemi, Pekka, et al.. (2006). Prognostic significance of Ki-67 and p53 as tumor markers in salivary gland malignancies in Finland: An evaluation of 212 cases. Acta Oncologica. 45(6). 669–675. 56 indexed citations
5.
Klemi, Pekka, Kalle Alanen, Sakari Hietanen, et al.. (2003). Response of Estrogen Receptor–Positive Intraabdominal Fibromatosis to Aromatase Inhibitor Therapy. Obstetrics and Gynecology. 102(Supplement). 1155–1158. 8 indexed citations
6.
Kinnunen, Ilpo, Pekka Klemi, & Reidar Grénman. (2000). Saccular Laryngeal Cysts. ORL. 62(2). 109–111. 9 indexed citations
7.
Sipilä, Jukka & Pekka Klemi. (1997). Circumferential Squamocellular Papilloma of the Cervical Esophagus, a Rare Cause of Dysphagia. ORL. 59(2). 119–121. 1 indexed citations
8.
Atula, Timo, et al.. (1995). Aneuploidy in salivary gland adenomas. European Archives of Oto-Rhino-Laryngology. 252(7). 395–400. 6 indexed citations
9.
10.
Joensuu, Heikki, Kalle Alanen, Sture Falkmer, et al.. (1992). Effect of DNA ploidy classification on prognosis in breast cancer. International Journal of Cancer. 52(5). 701–706. 19 indexed citations
11.
Hietanen, Sakari, Eeva Auvinen, Seija Grénman, et al.. (1992). Isolation of two keratinocyte cell lines derived from HPV‐positive dysplastic vaginal lesions. International Journal of Cancer. 52(3). 391–398. 16 indexed citations
12.
Alanen, Kalle, Sture Falkmer, Pekka Klemi, Heikki Joensuu, & Sture Falkmer. (1992). Flow and image cytometric study of pancreatic neuroendocrine tumours: Frequent DNA aneuploidy and an association with the clinical outcome. Archiv für Pathologische Anatomie und Physiologie und für Klinische Medicin. 421(2). 121–125. 6 indexed citations
13.
Klemi, Pekka, Kalle Alanen, Sirpa Jalkanen, & Heikki Joensuu. (1992). Proliferating cell nuclear antigen (PCNA) as a prognostic factor in non-Hodgkin's lymphoma. British Journal of Cancer. 66(4). 739–743. 17 indexed citations
14.
Klemi, Pekka, et al.. (1991). Fine needle aspiration biopsy in the diagnosis of thyroid nodules.. PubMed. 35(4). 434–8. 33 indexed citations
15.
Pekkola‐Heino, Kirsi, Jenni Kulmala, Pekka Klemi, et al.. (1991). Effects of radiation fractionation on four squamous cell carcinoma lines with dissimilar inherent radiation sensitivity. Journal of Cancer Research and Clinical Oncology. 117(6). 597–602. 24 indexed citations
16.
Joensuu, Heikki, Pekka Klemi, & Kalle Alanen. (1989). Co-existence of two aneuploid stemlines in benign adenomas. Archiv für Pathologische Anatomie und Physiologie und für Klinische Medicin. 415(2). 175–180. 12 indexed citations
17.
Alanen, Kalle, Heikki Joensuu, & Pekka Klemi. (1989). Autolysis is a potential source of false aneuploid peaks in flow cytometric DNA histograms. Cytometry. 10(4). 417–425. 72 indexed citations
18.
Kujari, Harry, Heikki Joensuu, Pekka Klemi, R. Asola, & E Nordman. (1988). A flow cytometric analysis of 23 carcinoid tumors. Cancer. 61(12). 2517–2520. 18 indexed citations
19.
Joensuu, Heikki, Pekka Klemi, Erkki Eerola, & Juhani Tuominen. (1986). Influence of cellular DNA content on survival in differentiated thyroid cancer. Cancer. 58(11). 2462–2467. 87 indexed citations
20.
Punnonen, R., et al.. (1982). Chlamydial pelvic inflammatory disease with ascites. Fertility and Sterility. 37(2). 270–272. 6 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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