Per Kolstad

3.7k total citations · 1 hit paper
73 papers, 2.8k citations indexed

About

Per Kolstad is a scholar working on Obstetrics and Gynecology, Epidemiology and Reproductive Medicine. According to data from OpenAlex, Per Kolstad has authored 73 papers receiving a total of 2.8k indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Obstetrics and Gynecology, 21 papers in Epidemiology and 19 papers in Reproductive Medicine. Recurrent topics in Per Kolstad's work include Endometrial and Cervical Cancer Treatments (23 papers), Cervical Cancer and HPV Research (20 papers) and Ovarian cancer diagnosis and treatment (18 papers). Per Kolstad is often cited by papers focused on Endometrial and Cervical Cancer Treatments (23 papers), Cervical Cancer and HPV Research (20 papers) and Ovarian cancer diagnosis and treatment (18 papers). Per Kolstad collaborates with scholars based in Norway, United States and Uganda. Per Kolstad's co-authors include Vera M. Abeler, J.G. Aalders, Mathias Onsrud, Kari Høeg, J. Chr. Aure, Kjell E. Kjørstad, Per Bergsjø, Torbjørn Iversen, H. Kalter and Robert E. Black and has published in prestigious journals such as Cancer, American Journal of Obstetrics and Gynecology and International Journal of Radiation Oncology*Biology*Physics.

In The Last Decade

Per Kolstad

71 papers receiving 2.6k 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.

Postoperative external irradiation and prognostic parameters in stage I endometrial carcinoma: clinical and histopathologic study of 540 patients.

1980 614 citations J.G. Aalders, Vera M. Abeler et al. PubMed profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Per Kolstad Norway	29	1.6k	1.2k	733	543	319	73	2.8k
J.L. Benedet Canada	27	1.5k 1.0×	1.0k 0.8×	1.3k 1.8×	780 1.4×	636 2.0×	56	3.1k
George D. Malkasian United States	37	1.4k 0.9×	2.3k 1.9×	553 0.8×	924 1.7×	759 2.4×	97	4.1k
D Dargent France	27	2.1k 1.4×	1.3k 1.0×	1.0k 1.4×	802 1.5×	498 1.6×	109	2.9k
Kenneth R. Lee United States	30	972 0.6×	1.0k 0.8×	1.1k 1.6×	888 1.6×	358 1.1×	77	2.6k
Herbert J. Buchsbaum United States	23	661 0.4×	647 0.5×	245 0.3×	881 1.6×	384 1.2×	69	1.8k
Hugh M. Shingleton United States	37	3.0k 1.9×	1.8k 1.5×	1.7k 2.3×	1.7k 3.2×	939 2.9×	141	4.8k
Benjamin Piura Israel	29	708 0.5×	1.0k 0.8×	480 0.7×	640 1.2×	770 2.4×	163	2.9k
James Nicklin Australia	28	2.0k 1.3×	1.5k 1.2×	825 1.1×	920 1.7×	586 1.8×	87	3.3k
David Luesley United Kingdom	33	1.7k 1.1×	1.8k 1.4×	1.7k 2.3×	1.7k 3.2×	751 2.4×	144	4.2k
Howard G. Muntz United States	21	1.2k 0.8×	1.4k 1.1×	336 0.5×	567 1.0×	392 1.2×	50	2.4k

Countries citing papers authored by Per Kolstad

Since Specialization

Citations

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

Fields of papers citing papers by Per Kolstad

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Per Kolstad

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

Kolstad, Per, Gilbert Burnham, H. Kalter, Nathan Kenya‐Mugisha, & Robert E. Black. (1998). Potential implications of the integrated management of childhood illness (IMCI) for hospital referral and pharmaceutical usage in western Uganda. Tropical Medicine & International Health. 3(9). 691–699. 19 indexed citations

Kolstad, Per, et al.. (1996). THE VASCULAR PATTERN OF TRICHOMONAS VAGINALIS CERVICITIS.. PubMed. 7. 292–4. 2 indexed citations

Vergote, Ignace, Kjell E. Kjørstad, Vera M. Abeler, & Per Kolstad. (1989). A randomized trial of adjuvant progestagen in early endometrial cancer. Cancer. 64(5). 1011–1016. 68 indexed citations

Kolstad, Per. (1989). Follow-up study of 232 patients with stage Ia1 and 411 patients with stage Ia2 squamous cell carcinoma of the cervix (microinvasive carcinoma). Gynecologic Oncology. 33(3). 265–272. 86 indexed citations

Overgaard, Jens, Søren M. Bentzen, Per Kolstad, et al.. (1989). Misonidazole combined with radiotherapy in the treatment of carcinoma of the uterine cervix. International Journal of Radiation Oncology*Biology*Physics. 16(4). 1069–1072. 47 indexed citations

Kolstad, Per. (1987). Erhaltung der Ovarialfunktion in der Behandlung der epithelialen und speziellen (anderen) malignen Ovarialtumoren. Geburtshilfe und Frauenheilkunde. 47(10). 683–689. 2 indexed citations

Aalders, J.G., Vera M. Abeler, & Per Kolstad. (1984). Recurrent adenocarcinoma of the endometrium: A clinical and histopathological study of 379 patients. Gynecologic Oncology. 17(1). 85–103. 182 indexed citations

Łukomska, Barbara, et al.. (1983). The effect of surgery and chemotherapy on blood NK cell activity in patients with ovarian cancer. Cancer. 51(3). 465–469. 37 indexed citations

Kolstad, Per. (1983). Vascular Changes in Cervical Intraepithelial Neoplasia and Invasive Cervical Carcinoma. Clinical Obstetrics & Gynecology. 26(4). 938–948. 3 indexed citations

10.

Iversen, T, Vera M. Abeler, & Per Kolstad. (1981). Squamous Cell Carcinoma in Situ of the Vulva. A Clinical and Histopathological Study. Obstetrical & Gynecological Survey. 36(9). 519???520–519???520. 1 indexed citations

11.

Kolstad, Per, Margaret Davy, & Kari Høeg. (1977). Individualized treatment of ovarian cancer. American Journal of Obstetrics and Gynecology. 128(6). 617–625. 28 indexed citations

12.

Onsrud, Mathias, Per Kolstad, & Trine Normann. (1976). Postoperative external pelvic irradiation in carcinoma of the corpus stage I: A controlled clinical trial. Gynecologic Oncology. 4(2). 222–231. 56 indexed citations

13.

Kolstad, Per. (1973). [Cancer of cervix uteri].. PubMed. 93(26). 1955–8. 1 indexed citations

14.

Aure, J. Chr., Kari Høeg, & Per Kolstad. (1971). Radioactive Colloidal Gold in the Treatment of Ovarian Carcinoma. Acta Radiologica Therapy Physics Biology. 10(4). 399–407. 11 indexed citations

15.

Bergsjø, Per & Per Kolstad. (1968). Clinical Trial with Atmospheric Oxygen Breathing during Radiotherapy of Cancer of the Cervix. Scandinavian Journal of Clinical and Laboratory Investigation. 21(sup106). 167–171. 28 indexed citations

16.

Sanner, Tore, Per Bergsjø, O Koller, Per Kolstad, & Alexander Pihl. (1967). Technical modifications of the 6-phosphogluconate dehydrogenase test of the vaginal fluid. American Journal of Obstetrics and Gynecology. 98(6). 800–803. 6 indexed citations

17.

Kolstad, Per. (1966). Carcinoma of the cervix, Stage 0. American Journal of Obstetrics and Gynecology. 96(8). 1098–1111. 29 indexed citations

18.

Bergsjø, Per & Per Kolstad. (1962). The Rhesus Factor and Cancer of the Female Genital Tract. Acta Obstetricia Et Gynecologica Scandinavica. 41(3). 310–312. 3 indexed citations

19.

Kolstad, Per, et al.. (1957). Succinylcholine Drip in Cæsarean Section. Acta Obstetricia Et Gynecologica Scandinavica. 36(2). 233–249. 2 indexed citations

20.

Kolstad, Per. (1957). Therapeutic Abortion: A clinical study based upon 968 cases from a Norwegian hospital, 1940–53. Acta Obstetricia Et Gynecologica Scandinavica. 36(S6). 1–72. 7 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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