Joseph E. O’Brien

1.6k total citations · 1 hit paper
32 papers, 1.2k citations indexed

About

Joseph E. O’Brien is a scholar working on Pediatrics, Perinatology and Child Health, Obstetrics and Gynecology and Rheumatology. According to data from OpenAlex, Joseph E. O’Brien has authored 32 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Pediatrics, Perinatology and Child Health, 12 papers in Obstetrics and Gynecology and 5 papers in Rheumatology. Recurrent topics in Joseph E. O’Brien's work include Prenatal Screening and Diagnostics (17 papers), Pregnancy and preeclampsia studies (11 papers) and Gestational Diabetes Research and Management (7 papers). Joseph E. O’Brien is often cited by papers focused on Prenatal Screening and Diagnostics (17 papers), Pregnancy and preeclampsia studies (11 papers) and Gestational Diabetes Research and Management (7 papers). Joseph E. O’Brien collaborates with scholars based in United States, Israel and Sweden. Joseph E. O’Brien's co-authors include Arthur Purdy Stout, Yuval Yaron, Ralph L. Kramer, Mark I. Evans, Mark P. Johnson, Mark Johnson, Mark I. Evans, Mordechai Hallak, Gregory C. Critchfield and J. W. Patterson and has published in prestigious journals such as Cancer, American Journal of Obstetrics and Gynecology and The Journal of Urology.

In The Last Decade

Joseph E. O’Brien

32 papers receiving 1.1k 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.

Malignant fibrous xanthomas

1964 697 citations Joseph E. O’Brien et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Joseph E. O’Brien United States	12	669	362	322	276	271	32	1.2k
C. Thomas Kisker United States	19	462 0.7×	210 0.6×	168 0.5×	162 0.6×	192 0.7×	56	1.6k
D A Levison United Kingdom	18	293 0.4×	189 0.5×	136 0.4×	170 0.6×	31 0.1×	44	1.1k
Barry B. McGuire Ireland	21	661 1.0×	166 0.5×	125 0.4×	105 0.4×	64 0.2×	74	1.3k
Andrei Nadu Israel	21	648 1.0×	66 0.2×	214 0.7×	121 0.4×	44 0.2×	49	1.1k
Lynn H. Banowsky United States	17	573 0.9×	185 0.5×	78 0.2×	130 0.5×	30 0.1×	67	1.2k
Martin Haeusler Austria	19	380 0.6×	113 0.3×	592 1.8×	35 0.1×	27 0.1×	48	1.4k
Orietta Dalpiaz Austria	23	500 0.7×	324 0.9×	96 0.3×	264 1.0×	22 0.1×	46	1.3k
Frederico R. Romero United States	19	593 0.9×	171 0.5×	164 0.5×	153 0.6×	28 0.1×	48	1.1k
Dirk Fahlenkamp Germany	16	772 1.2×	285 0.8×	345 1.1×	87 0.3×	19 0.1×	48	1.4k
Stefania Ferretti Italy	18	453 0.7×	100 0.3×	176 0.5×	529 1.9×	23 0.1×	87	1.3k

Countries citing papers authored by Joseph E. O’Brien

Since Specialization

Citations

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

Fields of papers citing papers by Joseph E. O’Brien

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Joseph E. O’Brien. 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 Joseph E. O’Brien. The network helps show where Joseph E. O’Brien may publish in the future.

Co-authorship network of co-authors of Joseph E. O’Brien

This figure shows the co-authorship network connecting the top 25 collaborators of Joseph E. O’Brien. A scholar is included among the top collaborators of Joseph E. O’Brien 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 Joseph E. O’Brien. Joseph E. O’Brien 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

Evans, Mark I., et al.. (2004). Impact of Folic Acid Fortification in the United States: Markedly Diminished High Maternal Serum Alpha-Fetoprotein Values. Obstetrics and Gynecology. 103(3). 474–479. 11 indexed citations

Evans, Mark I., et al.. (2003). Standardization of Methods Reduces Variability: Explanation for Historical Discrepancies in Biochemical Screening. Genetic Testing. 7(1). 81–83. 3 indexed citations

Evans, Mark I., Harold H. Harrison, Joseph E. O’Brien, et al.. (2002). Maternal Weight Correction for α-Fetoprotein: Mathematical Truncations Revisited. Genetic Testing. 6(3). 221–223. 4 indexed citations

Evans, Mark I., Harold H. Harrison, Joseph E. O’Brien, et al.. (2002). Correction for insulin-dependent diabetes in maternal serum α-fetoprotein testing has outlived its usefulness. American Journal of Obstetrics and Gynecology. 187(4). 1084–1086. 10 indexed citations

Evans, Mark I., et al.. (2001). SECOND-TRIMESTER BIOCHEMICAL SCREENING. Clinics in Perinatology. 28(2). 289–301. 3 indexed citations

Evans, Mark I., Joseph E. O’Brien, & Anthony Johnson. (1999). Screening for aneuploidy. Current Opinion in Obstetrics & Gynecology. 11(2). 115–118. 2 indexed citations

Yaron, Yuval, Ralph L. Kramer, Joseph E. O’Brien, et al.. (1999). Second-trimester maternal serum marker screening: Maternal serum α-fetoprotein, β-human chorionic gonadotropin, estriol, and their various combinations as predictors of pregnancy outcome. American Journal of Obstetrics and Gynecology. 181(4). 968–974. 141 indexed citations

Feldman, Baruch, et al.. (1999). Distribution of Neural Tube Defects as a Function of Maternal Weight:No Apparent Correlation. Fetal Diagnosis and Therapy. 14(3). 185–189. 17 indexed citations

O’Brien, Joseph E. & Michael Brookes. (1999). Determination of Reference Values for a Novel Ketoamine-Specific Fructosamine Assay for Assessment of Diabetic Glycemic Control. Diabetes Technology & Therapeutics. 1(4). 447–455. 7 indexed citations

10.

Yaron, Yuval, et al.. (1998). Combination of elevated maternal serum alpha-fetoprotein (MSAFP) and low estriol is highly predictive of anencephaly. American Journal of Medical Genetics. 75(3). 297–299. 7 indexed citations

11.

Bryant-Greenwood, Peter, et al.. (1998). Maternal Weight Differences Do Not Explain Ethnic Differences in Biochemical Screening. Fetal Diagnosis and Therapy. 13(1). 46–48. 25 indexed citations

12.

Sokol, Andrew I., Ralph L. Kramer, Yuval Yaron, et al.. (1998). Age-specific variation in aneuploidy incidence among biochemical screening programs. American Journal of Obstetrics and Gynecology. 179(4). 971–973. 8 indexed citations

13.

O’Brien, Joseph E., et al.. (1997). Differential increases in AFP, hCG, and uE3 in twin pregnancies: Impact on attempts to quantify Down syndrome screening calculations. American Journal of Medical Genetics. 73(2). 109–112. 28 indexed citations

14.

Hallak, Mordechai, Joseph E. O’Brien, Nelson B. Isada, et al.. (1997). Maternal thyroid function does not alter maternal serum ?-fetoprotein interpretation. The Journal of Maternal-Fetal Medicine. 6(2). 115–117. 2 indexed citations

15.

Drugan, Arie, Joseph E. O’Brien, Eric L. Krivchenia, et al.. (1996). Multiple Marker Screening in Multifetal Gestations: Failure to Predict Adverse Pregnancy Outcomes. Fetal Diagnosis and Therapy. 11(1). 16–19. 12 indexed citations

16.

Evans, Mark I., et al.. (1996). Logistic regression generated probability estimates for trisomy 21 outcomes from serum alpha fetoprotein and beta human chorionic gonadotrophin: Simplification with increased specificity. The Journal of Maternal-Fetal Medicine. 5(1). 1–6. 9 indexed citations

17.

Evans, Mark I., Lawrence Chik, Joseph E. O’Brien, et al.. (1995). MOMs (multiples of the median) and DADs (disciminant aneuploidy detection): Improved specificity and cost-effectiveness of biochemial screening for aneuploidy with DADs. American Journal of Obstetrics and Gynecology. 172(4). 1138–1149. 26 indexed citations

18.

O’Brien, Joseph E., Arie Drugan, Frank A. Chervenak, et al.. (1993). Maternal Serum Alpha-Fetoprotein Screening: The Need to Use Race/Ethnic Specific Medians in Asians. Fetal Diagnosis and Therapy. 8(6). 367–370. 9 indexed citations

19.

Drugan, Arie, Joseph E. O’Brien, Raymond Gambino, Mark P. Johnson, & Mark I. Evans. (1993). Similarity of Twins to Singleton Maternal Serum Alpha-Fetoprotein Ratio by Race: No Need to Establish Specific Multifetal Tables. Fetal Diagnosis and Therapy. 8(2). 84–88. 3 indexed citations

20.

O’Brien, Joseph E.. (1985). Reliability of lipid and lipoprotein testing (II). The American Journal of Cardiology. 56(18). J9–J9. 2 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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