May Lee Tjoa

826 total citations
17 papers, 585 citations indexed

About

May Lee Tjoa is a scholar working on Pediatrics, Perinatology and Child Health, Obstetrics and Gynecology and Hematology. According to data from OpenAlex, May Lee Tjoa has authored 17 papers receiving a total of 585 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Pediatrics, Perinatology and Child Health, 10 papers in Obstetrics and Gynecology and 5 papers in Hematology. Recurrent topics in May Lee Tjoa's work include Pregnancy and preeclampsia studies (10 papers), Birth, Development, and Health (6 papers) and Prenatal Screening and Diagnostics (5 papers). May Lee Tjoa is often cited by papers focused on Pregnancy and preeclampsia studies (10 papers), Birth, Development, and Health (6 papers) and Prenatal Screening and Diagnostics (5 papers). May Lee Tjoa collaborates with scholars based in Netherlands, United States and Sweden. May Lee Tjoa's co-authors include Cees B.M. Oudejans, Diana W. Bianchi, J. M. G. van Vugt, Inge J. van Wijk, Olivera Spasić-Bošković, Tereza Cindrová‐Davies, Graham J. Burton, Monique A. M. Mulders, Marinus A. Blankenstein and Dick Oepkes and has published in prestigious journals such as Diabetes Care, Annals of the New York Academy of Sciences and American Journal of Obstetrics and Gynecology.

In The Last Decade

May Lee Tjoa

17 papers receiving 571 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
May Lee Tjoa Netherlands 11 418 288 131 106 97 17 585
R. Levy Israel 10 271 0.6× 434 1.5× 84 0.6× 136 1.3× 84 0.9× 15 647
Xu-ming Bian China 10 382 0.9× 195 0.7× 82 0.6× 107 1.0× 92 0.9× 43 681
İnanç Mendilcioğlu Türkiye 14 225 0.5× 215 0.7× 67 0.5× 64 0.6× 57 0.6× 64 643
Kılıç Aydinli Türkiye 13 289 0.7× 382 1.3× 183 1.4× 128 1.2× 30 0.3× 40 680
Danila Morano Italy 15 336 0.8× 330 1.1× 79 0.6× 95 0.9× 13 0.1× 43 562
Tibor Várkonyi Hungary 11 144 0.3× 277 1.0× 67 0.5× 203 1.9× 31 0.3× 16 452
Ivana Kuzmiç Prusac Croatia 12 130 0.3× 186 0.6× 98 0.7× 95 0.9× 17 0.2× 40 382
Vasilis Sitras Norway 11 333 0.8× 429 1.5× 94 0.7× 116 1.1× 7 0.1× 25 583
Linda T. Roten Norway 9 278 0.7× 348 1.2× 62 0.5× 117 1.1× 7 0.1× 16 464
Martti Ämmälä Finland 11 93 0.2× 93 0.3× 62 0.5× 86 0.8× 21 0.2× 12 364

Countries citing papers authored by May Lee Tjoa

Since Specialization
Citations

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

Fields of papers citing papers by May Lee Tjoa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by May Lee Tjoa. 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 May Lee Tjoa. The network helps show where May Lee Tjoa may publish in the future.

Co-authorship network of co-authors of May Lee Tjoa

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

All Works

17 of 17 papers shown
1.
Tjoa, May Lee, et al.. (2025). Plain Language Summary of Publication: Design of the Phase 3 AZALEA Trial of Nipocalimab in Severe Hemolytic Disease of the Fetus and Newborn. American Journal of Perinatology. 42(7). 955–961. 1 indexed citations
2.
Tiblad, Eleonor, Enrico Lopriore, Dick Oepkes, et al.. (2024). Design of a Phase 3, Global, Multicenter, Randomized, Placebo-Controlled, Double-Blind Study of Nipocalimab in Pregnancies at Risk for Severe Hemolytic Disease of the Fetus and Newborn. American Journal of Perinatology. 42(7). 842–853. 7 indexed citations
3.
Tjoa, May Lee, et al.. (2023). Hemolytic disease of the fetus and newborn: systematic literature review of the antenatal landscape. BMC Pregnancy and Childbirth. 23(1). 12–12. 29 indexed citations
4.
Tjoa, May Lee, et al.. (2023). Hemolytic disease of the fetus and newborn: rapid review of postnatal care and outcomes. BMC Pregnancy and Childbirth. 23(1). 738–738. 3 indexed citations
5.
6.
Thadhani, Ravi, Camille E. Powe, May Lee Tjoa, et al.. (2009). First-Trimester Follistatin-Like-3 Levels in Pregnancies Complicated by Subsequent Gestational Diabetes Mellitus. Diabetes Care. 33(3). 664–669. 32 indexed citations
7.
Tjoa, May Lee, Jacques Jani, Liesbeth Lewi, et al.. (2006). Circulating cell-free fetal messenger RNA levels after fetoscopic interventions of complicated pregnancies. American Journal of Obstetrics and Gynecology. 195(1). 230–235. 19 indexed citations
8.
Tjoa, May Lee, Tereza Cindrová‐Davies, Olivera Spasić-Bošković, Diana W. Bianchi, & Graham J. Burton. (2006). Trophoblastic Oxidative Stress and the Release of Cell-Free Feto-Placental DNA. American Journal Of Pathology. 169(2). 400–404. 174 indexed citations
9.
Tjoa, May Lee. (2006). Angiogenic factors and preeclampsia. Frontiers in bioscience. 12(1). 2395–2395. 57 indexed citations
10.
Bianchi, Diana W., Tuangsit Wataganara, Olav Lapaire, et al.. (2006). Fetal Nucleic Acids in Maternal Body Fluids. Annals of the New York Academy of Sciences. 1075(1). 63–73. 15 indexed citations
11.
Tjoa, May Lee, Frans Martens, Inge J. van Wijk, et al.. (2004). Neurokinin B levels in maternal circulation during early pregnancy. Clinical Chemistry and Laboratory Medicine (CCLM). 42(6). 611–3. 4 indexed citations
12.
Tjoa, May Lee, Cees B.M. Oudejans, J. M. G. van Vugt, Marinus A. Blankenstein, & Inge J. van Wijk. (2004). Markers for Presymptomatic Prediction of Preeclampsia and Intrauterine Growth Restriction. Hypertension in Pregnancy. 23(2). 171–189. 58 indexed citations
13.
Tjoa, May Lee, Monique A. M. Mulders, J. M. G. van Vugt, et al.. (2003). Plasma hepatocyte growth factor as a marker for small-for-gestational age fetuses. European Journal of Obstetrics & Gynecology and Reproductive Biology. 110(1). 20–25. 10 indexed citations
14.
Oudejans, Cees B.M., May Lee Tjoa, Bart A. Westerman, et al.. (2003). Circulating trophoblast in maternal blood. Prenatal Diagnosis. 23(2). 111–116. 47 indexed citations
15.
Wijk, Inge J. van, May Lee Tjoa, Monique A. M. Mulders, et al.. (2001). HLA-G expression in trophoblast cells circulating in maternal peripheral blood during early pregnancy. American Journal of Obstetrics and Gynecology. 184(5). 991–997. 39 indexed citations
16.
Tjoa, May Lee, J. M. G. van Vugt, Monique A. M. Mulders, et al.. (2001). Plasma Placenta Growth Factor Levels in Midtrimester Pregnancies. Obstetrics and Gynecology. 98(4). 600–607. 12 indexed citations
17.
Wijk, Inge J. van, et al.. (2000). Detection of Apoptotic Fetal Cells in Plasma of Pregnant Women. Clinical Chemistry. 46(5). 729–731. 76 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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