Martti Ämmälä

457 total citations
12 papers, 364 citations indexed

About

Martti Ämmälä is a scholar working on Immunology, Surgery and Pediatrics, Perinatology and Child Health. According to data from OpenAlex, Martti Ämmälä has authored 12 papers receiving a total of 364 indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Immunology, 3 papers in Surgery and 3 papers in Pediatrics, Perinatology and Child Health. Recurrent topics in Martti Ämmälä's work include Reproductive System and Pregnancy (5 papers), Endometriosis Research and Treatment (3 papers) and Prenatal Screening and Diagnostics (3 papers). Martti Ämmälä is often cited by papers focused on Reproductive System and Pregnancy (5 papers), Endometriosis Research and Treatment (3 papers) and Prenatal Screening and Diagnostics (3 papers). Martti Ämmälä collaborates with scholars based in Finland and Norway. Martti Ämmälä's co-authors include Tuulikki Nyman, Fredrika Pekonen, Eeva‐Marja Rutanen, Pekka Taipale, Vilho Hiilesmaa, Riitta Salonen, Pentti Lehtovirta, E.‐M. Rutanen, L Viinikka and Olavi Ylikorkala and has published in prestigious journals such as British Journal of Cancer, International Journal of Cancer and Emerging infectious diseases.

In The Last Decade

Martti Ämmälä

11 papers receiving 343 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Martti Ämmälä Finland 11 97 93 93 86 73 12 364
Y. C. Wong Singapore 12 44 0.5× 103 1.1× 84 0.9× 45 0.5× 29 0.4× 23 344
Toby N. Fay United Kingdom 12 128 1.3× 136 1.5× 159 1.7× 118 1.4× 41 0.6× 19 463
D Kassanos Greece 15 124 1.3× 128 1.4× 164 1.8× 48 0.6× 85 1.2× 43 505
D. Aravantinos Greece 10 135 1.4× 41 0.4× 85 0.9× 67 0.8× 44 0.6× 26 435
C. M. Towler United Kingdom 13 84 0.9× 99 1.1× 123 1.3× 87 1.0× 18 0.2× 17 442
Stefan Kostadinov United States 12 88 0.9× 122 1.3× 112 1.2× 50 0.6× 46 0.6× 28 346
G Putignano Italy 12 57 0.6× 42 0.5× 177 1.9× 42 0.5× 119 1.6× 25 421
İnanç Mendilcioğlu Türkiye 14 135 1.4× 225 2.4× 215 2.3× 64 0.7× 58 0.8× 64 643
Atsushi Yoshida Japan 14 133 1.4× 187 2.0× 199 2.1× 67 0.8× 40 0.5× 41 608
Iris Roth United States 3 72 0.7× 79 0.8× 212 2.3× 210 2.4× 40 0.5× 5 340

Countries citing papers authored by Martti Ämmälä

Since Specialization
Citations

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

Fields of papers citing papers by Martti Ämmälä

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Martti Ämmälä

This figure shows the co-authorship network connecting the top 25 collaborators of Martti Ämmälä. A scholar is included among the top collaborators of Martti Ämmälä 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 Martti Ämmälä. Martti Ämmälä is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

12 of 12 papers shown
1.
Lyytikäinen, Outi, Erja Halmesmäki, Petteri Carlson, et al.. (2006). Vastasyntyneiden GBS-taudin ehkäisy – asiantuntijaryhmän suositus. STM:n Hallinnonalan avoin julkaisuarkisto (Julkari).
2.
Taipale, Pekka, Martti Ämmälä, Riitta Salonen, & Vilho Hiilesmaa. (2004). Two‐stage ultrasonography in screening for fetal anomalies at 13–14 and 18–22 weeks of gestation. Acta Obstetricia Et Gynecologica Scandinavica. 83(12). 1141–1146. 49 indexed citations
3.
Taipale, Pekka, Martti Ämmälä, Riitta Salonen, & Vilho Hiilesmaa. (2004). Two-stage ultrasonography in screening for fetal anomalies at 13-14 and 18-22 weeks of gestation. Acta Obstetricia Et Gynecologica Scandinavica. 83(12). 1141–1146. 22 indexed citations
4.
Taipale, Pekka, Martti Ämmälä, Riitta Salonen, & Vilho Hiilesmaa. (2003). Learning Curve in Ultrasonographic Screening for Selected Fetal Structural Anomalies in Early Pregnancy. Obstetrics and Gynecology. 101(2). 273–278. 10 indexed citations
5.
Lyytikäinen, Outi, J. Pekka Nuorti, Erja Halmesmäki, et al.. (2003). Invasive Group B Streptococcal Infections in Finland: A Population-based Study. Emerging infectious diseases. 9(4). 469–473. 45 indexed citations
6.
Ämmälä, Martti, et al.. (1997). The interleukin-1 system in gestational tissues at term: Effect of labour. Placenta. 18(8). 717–723. 43 indexed citations
7.
Ämmälä, Martti, et al.. (1996). Proto-oncogenes c-jun and c-fos are down-regulated in human endometrium during pregnancy: relationship to oestrogen receptor status. Molecular Human Reproduction. 2(12). 979–984. 22 indexed citations
8.
Pekonen, Fredrika, et al.. (1995). Expression of mRNA for keratinocyte growth factor and its receptor in human endometrium. Acta Obstetricia Et Gynecologica Scandinavica. 74(6). 410–414. 17 indexed citations
9.
Pekonen, Fredrika, et al.. (1995). Decreased expression of messenger RNAs encoding endothelin receptors and neutral endopeptidase 24.11 in endometrial cancer. British Journal of Cancer. 71(1). 59–63. 32 indexed citations
10.
Ämmälä, Martti, et al.. (1995). Effect of intrauterine contraceptive devices on cytokine messenger ribonucleic acid expression in the human endometrium. Fertility and Sterility. 63(4). 773–778. 31 indexed citations
11.
Rutanen, Eeva‐Marja, Tuulikki Nyman, Pentti Lehtovirta, Martti Ämmälä, & Fredrika Pekonen. (1994). Suppressed expression of insulin‐like growth factor binding protein‐1 mRNA in the endometrium: A molecular mechanism associating endometrial cancer with its risk factors. International Journal of Cancer. 59(3). 307–312. 61 indexed citations
12.
Pekonen, Fredrika, Vesa Rasi, Martti Ämmälä, L Viinikka, & Olavi Ylikorkala. (1986). Platelet function and coagulation in normal and preeclamptic pregnancy. Thrombosis Research. 43(5). 553–560. 32 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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