S.A. Birk

1.8k total citations
65 papers, 1.4k citations indexed

About

S.A. Birk is a scholar working on Endocrinology, Diabetes and Metabolism, Public Health, Environmental and Occupational Health and Reproductive Medicine. According to data from OpenAlex, S.A. Birk has authored 65 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Endocrinology, Diabetes and Metabolism, 24 papers in Public Health, Environmental and Occupational Health and 21 papers in Reproductive Medicine. Recurrent topics in S.A. Birk's work include Reproductive Health and Contraception (22 papers), Hormonal and reproductive studies (19 papers) and Ovarian function and disorders (18 papers). S.A. Birk is often cited by papers focused on Reproductive Health and Contraception (22 papers), Hormonal and reproductive studies (19 papers) and Ovarian function and disorders (18 papers). S.A. Birk collaborates with scholars based in United States. S.A. Birk's co-authors include William N. Spellacy, W.C. Buhi, William C. Buhi, W.N. Spellacy, Karen L. Carlson, Ana Cecília Ribeiro Cruz, Pushpa S. Kalra, Eng Soon Teoh, Bernard Cantor and R E Newton and has published in prestigious journals such as Diabetes, American Journal of Obstetrics and Gynecology and Fertility and Sterility.

In The Last Decade

S.A. Birk

65 papers receiving 1.2k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
S.A. Birk United States 22 542 367 316 292 278 65 1.4k
Ulf Larsson‐Cohn Sweden 25 728 1.3× 467 1.3× 128 0.4× 310 1.1× 173 0.6× 61 1.5k
S.S. Ratnam Singapore 19 165 0.3× 486 1.3× 222 0.7× 243 0.8× 308 1.1× 107 1.2k
T Pýörälä Finland 18 312 0.6× 256 0.7× 123 0.4× 99 0.3× 152 0.5× 42 867
Pierre Bourdoux Belgium 18 1.3k 2.5× 130 0.4× 226 0.7× 77 0.3× 548 2.0× 79 1.9k
D. G. Johnston United Kingdom 19 563 1.0× 340 0.9× 349 1.1× 414 1.4× 164 0.6× 40 1.4k
U Gaspard Belgium 18 344 0.6× 341 0.9× 92 0.3× 259 0.9× 89 0.3× 60 1.0k
Marcia F. Kalin United States 13 577 1.1× 349 1.0× 66 0.2× 332 1.1× 95 0.3× 16 1.3k
Anargyros Kourtis Greece 22 335 0.6× 387 1.1× 270 0.9× 715 2.4× 184 0.7× 53 1.4k
J. W. H. Doar United Kingdom 14 492 0.9× 291 0.8× 53 0.2× 120 0.4× 57 0.2× 28 1.2k
R. Niththyananthan United Kingdom 14 572 1.1× 375 1.0× 83 0.3× 405 1.4× 98 0.4× 18 1.1k

Countries citing papers authored by S.A. Birk

Since Specialization
Citations

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

Fields of papers citing papers by S.A. Birk

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by S.A. Birk. 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 S.A. Birk. The network helps show where S.A. Birk may publish in the future.

Co-authorship network of co-authors of S.A. Birk

This figure shows the co-authorship network connecting the top 25 collaborators of S.A. Birk. A scholar is included among the top collaborators of S.A. Birk 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 S.A. Birk. S.A. Birk 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.
Spellacy, William N., William C. Buhi, & S.A. Birk. (1982). The effects of two years of mestranol treatment on carbohydrate metabolism. Metabolism. 31(10). 1006–1008. 12 indexed citations
2.
Birk, S.A., et al.. (1981). A Study of Child Mortality in Mogadishu Somalia. Journal of Tropical Pediatrics. 27(6). 279–284. 6 indexed citations
3.
Spellacy, William N., W.C. Buhi, & S.A. Birk. (1980). Carbohydrate metabolism with three months of low-estrogen contraceptive use. American Journal of Obstetrics and Gynecology. 138(2). 151–155. 6 indexed citations
4.
Spellacy, William N., Pushpa S. Kalra, & S.A. Birk. (1979). Prospective Studies of the Gonadotropin Responses to Graded Injections of Gonadotropin-Releasing Factor in Women Using a Low-Estrogen Type Oral Contraceptive for Three Months. Fertility and Sterility. 32(6). 661–663. 1 indexed citations
5.
Spellacy, William N., W.C. Buhi, & S.A. Birk. (1978). Human placental lactogen levels in multiple pregnancies.. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 52(2). 210–2. 38 indexed citations
6.
Spellacy, William N., William C. Buhi, & S.A. Birk. (1978). Studies of Carbohydrate and Lipid Metabolism in Women Using the Progesterone-T Intrauterine Device for Six Months: Blood Glucose, Insulin, Cholesterol, and Triglyceride Levels. Fertility and Sterility. 29(5). 505–508. 3 indexed citations
7.
Spellacy, William N., Bernard Cantor, Pushpa S. Kalra, William C. Buhi, & S.A. Birk. (1978). The Effect of Acutely Elevated Blood Glucose Levels on Luteinizing Hormone and Follicle-Stimulating Hormone Release Following an Intravenous Gonadotropin-Releasing Hormone Injection. Fertility and Sterility. 29(1). 35–39. 1 indexed citations
8.
9.
Spellacy, William N., S.A. Birk, & W.C. Buhi. (1977). A national survey of medical school obstetrics and gynecology departments, 1965 to 1975. Academic Medicine. 52(11). 901–5. 4 indexed citations
10.
Spellacy, William N., Bernard Cantor, Pushpa S. Kalra, William C. Buhi, & S.A. Birk. (1977). The Effect of Gonadotropin-Releasing Hormone on Blood Glucose, Insulin, Luteinizing Hormone, and Follicle-Stimulating Hormone Levels. Fertility and Sterility. 28(7). 733–736. 2 indexed citations
11.
Spellacy, William N., et al.. (1976). Lipid and Carbohydrate Metabolic Studies After One Year of Megestrol Acetate Treatment. Fertility and Sterility. 27(2). 157–161. 13 indexed citations
12.
Spellacy, W.N., W.C. Buhi, & S.A. Birk. (1976). The effects of norgestrel on carbohydrate and lipid metabolism over one year. American Journal of Obstetrics and Gynecology. 125(7). 984–986. 36 indexed citations
13.
Spellacy, William N., William C. Buhi, & S.A. Birk. (1975). Stimulated plasma prolactin levels in women using medroxyprogesterone acetate or an intrauterine device for contraception. Fertility and Sterility. 26(10). 970–972. 12 indexed citations
14.
Spellacy, W.N., W.C. Buhi, & S.A. Birk. (1974). Norgestrel and carbohydrate-lipid metabolism: Glucose, insulin and triglyceride changes during six months time of use. Contraception. 9(6). 615–625. 30 indexed citations
15.
Spellacy, William N., et al.. (1974). The Effect of Copper Intrauterine Devices on Endocervical Gonococcal Cultures. Fertility and Sterility. 25(9). 772–773. 12 indexed citations
16.
Spellacy, William N., et al.. (1973). The Effects of Estrogens, Progestogen, Oral Contraceptives, And Intrauterine Devices on Fasting Triglyceride And Insulin Levels. Fertility and Sterility. 24(3). 178–184. 24 indexed citations
17.
Spellacy, William N., et al.. (1973). Metabolic Studies in Women Taking Norethindrone for 6 Months’ Time (Measurements of Blood Glucose, Insulin, and Triglyceride Concentrations). Fertility and Sterility. 24(6). 419–425. 20 indexed citations
18.
Spellacy, W.N., et al.. (1971). Studies of Chlormadinone Acetate and Mestranol on Blood Glucose and Plasma Insulin. I. Six-Month Oral Glucose Tolerance Test. Fertility and Sterility. 22(4). 217–223. 10 indexed citations
19.
Spellacy, William N., et al.. (1971). Studies of Chlormadinone Acetate and Mestranol on Blood Glucose and Plasma Insulin. II. Twelfth Month Oral Glucose Tolerance Test. Fertility and Sterility. 22(4). 224–228. 7 indexed citations
20.
Spellacy, William N., et al.. (1969). Insulin and Glucose Determinations After Two and Three Years of Use of a Combination-Type Oral Contraceptive. Fertility and Sterility. 20(6). 892–902. 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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