John E. Freitas

1.9k citations
63 papers · 1.4k indexed · h-index 23

Impact in

Papers in

    • Hormonal Regulation and Hypertension 11
    • Adrenal Hormones and Disorders 10
    • Thyroid Cancer Diagnosis and Treatment 9
    • Thyroid Disorders and Treatments 6
    • Adrenal and Paraganglionic Tumors 10
    • Pediatric Hepatobiliary Diseases and Treatments 5

John E. Freitas

61 papers receiving 1.3k citations

Peers

John E. Freitas
Comparison fields: 5 of 105
  • Endocrinology, Diabetes and Metabolism 526
  • Internal Medicine 52
  • Reproductive Medicine 114
  • Surgery 553
  • Radiology, Nuclear Medicine and Imaging 287
Replace J.A.W. Webb with:
J.A.W. Webb United Kingdom
Matthew Sperling United States
Eugene L. Saenger United States
Frank H. DeLand United States
Arlan J. Gottlieb United States
A. J.W. Hilson United Kingdom
Yoshio Hiraki Japan
G M Glazer United States
V. R. McCready United Kingdom
H. Anderson Sweden
John E. Freitas relative to J.A.W. Webb United Kingdom J.A.W. Webb's profile →
Citations per field
00.5×
J.A.W. Webb · 1×
Citations per year

Countries citing papers authored by John E. Freitas

Since Specialization
Citations

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

Fields of papers citing papers by John E. Freitas

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John E. Freitas. 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 John E. Freitas. The network helps show where John E. Freitas may publish in the future.

Co-authors

The 25 scholars most cited alongside John E. Freitas, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with John E. Freitas Line = papers co-authored together John E. Freitas links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown

Showing the 20 most-cited of 63 papers — load more, or switch the sort, to bring in the rest.

#Work
1 2011141
2
Clinical comparison of cardiac blood pool visualization with technetium-99m red blood cells labeled in vivo and with technetium-99m human serum albumin.
1978101
3 198597
4 198976
5
Modified PIOPED criteria used in clinical practice.
199557
6 199450
7
Iodine-131: optimal therapy for hyperthyroidism in children and adolescents?
197948
8 197847
9 198346
10 199341
11 198439
12
Acid-citrate-dextrose compared with heparin in the preparation of in vivo/in vitro technetium-99m red blood cells.
198337
13 198237
14 200034
15 199333
16 198033
17
The clinical utility of prostate-specific antigen and bone scintigraphy in prostate cancer follow-up.
199131
18
Limited significance of asymmetric adrenal visualization on dexamethasone-suppression scintigraphy.
198530
19
Adrenal imaging with iodomethyl-norcholesterol (I-131) in primary aldosteronism.
197929
20 199428

About John E. Freitas

John E. Freitas is a scholar working on Endocrinology, Diabetes and Metabolism, Surgery, Pulmonary and Respiratory Medicine, Radiology, Nuclear Medicine and Imaging and Emergency Medicine, having authored 63 papers that have together received 1.4k indexed citations. Recurring topics across this work include Hormonal Regulation and Hypertension (11 papers), Adrenal Hormones and Disorders (10 papers), Adrenal and Paraganglionic Tumors (10 papers), Gallbladder and Bile Duct Disorders (9 papers), Thyroid Cancer Diagnosis and Treatment (9 papers), Thyroid Disorders and Treatments (6 papers), Pediatric Hepatobiliary Diseases and Treatments (5 papers) and Medical Imaging Techniques and Applications (5 papers). The work is most often cited by research in Endocrinology, Diabetes and Metabolism (526 citations), Internal Medicine (52 citations), Reproductive Medicine (114 citations), Surgery (553 citations) and Radiology, Nuclear Medicine and Imaging (287 citations). John E. Freitas has collaborated with scholars based in United States, Australia and Canada. Frequent co-authors include Milton D. Gross, William H. Beierwaltes, Brahm Shapiro, Dennis P. Swanson, Evan J. Kass, Mostafa A. El‐Sayed, James H. Thrall, Hyun Jin Hwang, James H. Thrall and James C. Sisson. Their work appears in journals such as Seminars in Nuclear Medicine, The Journal of Physical Chemistry, Radiology, JAMA and Chemical Physics Letters.

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.

Explore authors with similar magnitude of impact

Rankless by CCL
2026