Ralph K. Tamura

2.2k total citations
56 papers, 1.6k citations indexed

About

Ralph K. Tamura is a scholar working on Pediatrics, Perinatology and Child Health, Obstetrics and Gynecology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Ralph K. Tamura has authored 56 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Pediatrics, Perinatology and Child Health, 20 papers in Obstetrics and Gynecology and 13 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Ralph K. Tamura's work include Pregnancy and preeclampsia studies (15 papers), Neonatal Respiratory Health Research (10 papers) and Assisted Reproductive Technology and Twin Pregnancy (9 papers). Ralph K. Tamura is often cited by papers focused on Pregnancy and preeclampsia studies (15 papers), Neonatal Respiratory Health Research (10 papers) and Assisted Reproductive Technology and Twin Pregnancy (9 papers). Ralph K. Tamura collaborates with scholars based in United States, Saudi Arabia and China. Ralph K. Tamura's co-authors include Rudy E. Sabbagha, Michael L. Socol, Richard Depp, Sharon L. Dooley, Steven J. Ory, Peter K. Sand, Scott N. MacGregor, Thomas R. Wigton, Naomi Vaisrub and Michael J. Kupferminc and has published in prestigious journals such as American Journal of Obstetrics and Gynecology, Obstetrics and Gynecology and Human Genetics.

In The Last Decade

Ralph K. Tamura

55 papers receiving 1.5k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ralph K. Tamura United States 26 984 733 315 312 251 56 1.6k
Janet Horenstein United States 25 892 0.9× 611 0.8× 359 1.1× 305 1.0× 172 0.7× 45 1.6k
Arnold L. Medearis United States 23 825 0.8× 828 1.1× 303 1.0× 233 0.7× 186 0.7× 47 1.4k
Cynthia Kaplan United States 21 751 0.8× 743 1.0× 261 0.8× 294 0.9× 338 1.3× 60 1.7k
K Philipp Austria 24 1.1k 1.1× 778 1.1× 208 0.7× 301 1.0× 105 0.4× 64 1.6k
Pekka Taipale Finland 23 1.0k 1.0× 865 1.2× 440 1.4× 414 1.3× 77 0.3× 39 1.7k
B. Puerto Spain 27 1.4k 1.4× 1.0k 1.4× 235 0.7× 441 1.4× 289 1.2× 69 2.0k
Igal Wolman Israel 25 451 0.5× 677 0.9× 334 1.1× 418 1.3× 83 0.3× 95 1.7k
Sarah Bower United Kingdom 24 2.0k 2.0× 1.7k 2.3× 259 0.8× 310 1.0× 327 1.3× 48 2.5k
R. Gonen Israel 19 698 0.7× 868 1.2× 235 0.7× 205 0.7× 70 0.3× 50 1.3k
Y. Gilboa Israel 21 549 0.6× 380 0.5× 204 0.6× 371 1.2× 98 0.4× 134 1.3k

Countries citing papers authored by Ralph K. Tamura

Since Specialization
Citations

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

Fields of papers citing papers by Ralph K. Tamura

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ralph K. Tamura. 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 Ralph K. Tamura. The network helps show where Ralph K. Tamura may publish in the future.

Co-authorship network of co-authors of Ralph K. Tamura

This figure shows the co-authorship network connecting the top 25 collaborators of Ralph K. Tamura. A scholar is included among the top collaborators of Ralph K. Tamura 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 Ralph K. Tamura. Ralph K. Tamura 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.
Sabbagha, Rudy E., et al.. (2008). Ultrasound Diagnosis of Fetal Anomalies. The Global Library of Women s Medicine. 1 indexed citations
2.
Parilla, Barbara V., Ralph K. Tamura, Leeber S. Cohen, & Elizabeth Clark. (1997). Lack of effect of antenatal indomethacin on fetal cerebral blood flow. American Journal of Obstetrics and Gynecology. 176(6). 1166–1171. 23 indexed citations
3.
Tamura, Ralph K., et al.. (1995). The clinical significance of a single umbilical artery as an isolated finding on prenatal ultrasound. Obstetrics and Gynecology. 85(4). 570–572. 47 indexed citations
4.
Kupferminc, Michael J., Ralph K. Tamura, Rudy E. Sabbagha, et al.. (1994). Isolated choroid plexus cyst(s): An indication for amniocentesis. American Journal of Obstetrics and Gynecology. 171(4). 1068–1071. 45 indexed citations
5.
Kupferminc, Michael J., Alan M. Peaceman, Thomas R. Wigton, et al.. (1994). Immunoreactive tumor necrosis factor-α is elevated in maternal plasma but undetected in amniotic fluid in the second trimester. American Journal of Obstetrics and Gynecology. 171(4). 976–979. 33 indexed citations
6.
Wigton, Thomas R., et al.. (1993). Neonatal morbidity after preterm delivery in the presence of documented lung maturity. American Journal of Obstetrics and Gynecology. 169(4). 951–955. 20 indexed citations
7.
Kupferminc, Michael J., Ralph K. Tamura, Thomas R. Wigton, Raymond Glassenberg, & Michael L. Socol. (1993). Placenta accreta is associated with elevated maternal serum alpha-fetoprotein.. PubMed. 82(2). 266–9. 60 indexed citations
8.
Wigton, Thomas R., Rudy E. Sabbagha, Ralph K. Tamura, et al.. (1993). Sonographic diagnosis of congenital heart disease: comparison between the four-chamber view and multiple cardiac views.. PubMed. 82(2). 219–24. 61 indexed citations
9.
Peaceman, Alan M., Sharon L. Dooley, Ralph K. Tamura, & Michael L. Socol. (1992). Antepartum management of triplet gestations. American Journal of Obstetrics and Gynecology. 167(4). 1117–1120. 26 indexed citations
10.
Dooley, Sharon L., et al.. (1990). Awaiting cervical change for the diagnosis of preterm labor does not compromise the efficacy of ritodrine tocolysis. American Journal of Obstetrics and Gynecology. 163(3). 882–886. 11 indexed citations
11.
MacGregor, Scott N., et al.. (1988). Differing Fetal Growth Patterns in Pregnancies Complicated by Preterm Labor. Obstetrics and Gynecology. 72(6). 834–837. 19 indexed citations
12.
Socol, Michael L., et al.. (1987). Percutaneous umbilical transfusion in severe rhesus isoimmunization: Resolution of fetal hydrops. American Journal of Obstetrics and Gynecology. 157(6). 1369–1375. 32 indexed citations
13.
Sabbagha, Rudy E., et al.. (1987). Ultrasonic prediction of birth weight in preterm fetuses: Which formula is best?. American Journal of Obstetrics and Gynecology. 157(6). 1411–1414. 23 indexed citations
14.
Ory, Steven J., et al.. (1986). Conservative treatment of ectopic pregnancy with methotrexate. American Journal of Obstetrics and Gynecology. 154(6). 1299–1306. 144 indexed citations
15.
Tamura, Ralph K., Rudy E. Sabbagha, Sharon L. Dooley, et al.. (1985). Real-time ultrasound estimations of weight in fetuses of diabetic gravid women. American Journal of Obstetrics and Gynecology. 153(1). 57–60. 26 indexed citations
16.
Dooley, Sharon L., et al.. (1985). Meconium below the vocal cords at delivery: Correlation with intrapartum events. American Journal of Obstetrics and Gynecology. 153(7). 767–770. 56 indexed citations
17.
Tamura, Ralph K., Rudy E. Sabbagha, Richard Depp, et al.. (1984). Diminished growth in fetuses born preterm after spontaneous labor or rupture of membranes. American Journal of Obstetrics and Gynecology. 148(8). 1105–1110. 56 indexed citations
18.
Dooley, Sharon L., Richard Depp, Michael L. Socol, Ralph K. Tamura, & Naomi Vaisrub. (1984). Urinary estriols in diabetic pregnancy: a reappraisal.. PubMed. 64(4). 469–75. 9 indexed citations
19.
Silver, Richard K., Richard Depp, Rudy E. Sabbagha, et al.. (1984). Placenta previa: Aggressive expectant management. American Journal of Obstetrics and Gynecology. 150(1). 15–22. 45 indexed citations
20.
Tamura, Ralph K. & Rudy E. Sabbagha. (1980). Percentile ranks of sonar fetal abdominal circumference measurements. American Journal of Obstetrics and Gynecology. 138(5). 475–479. 50 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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