Sidney M. Hopfer

971 total citations
27 papers, 754 citations indexed

About

Sidney M. Hopfer is a scholar working on Pulmonary and Respiratory Medicine, Health, Toxicology and Mutagenesis and Nutrition and Dietetics. According to data from OpenAlex, Sidney M. Hopfer has authored 27 papers receiving a total of 754 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Pulmonary and Respiratory Medicine, 6 papers in Health, Toxicology and Mutagenesis and 6 papers in Nutrition and Dietetics. Recurrent topics in Sidney M. Hopfer's work include Trace Elements in Health (6 papers), Cystic Fibrosis Research Advances (5 papers) and Heavy Metal Exposure and Toxicity (5 papers). Sidney M. Hopfer is often cited by papers focused on Trace Elements in Health (6 papers), Cystic Fibrosis Research Advances (5 papers) and Heavy Metal Exposure and Toxicity (5 papers). Sidney M. Hopfer collaborates with scholars based in United States. Sidney M. Hopfer's co-authors include F. William Sunderman, Thomas R. Swift, Gregory S. Makowski, B. Dingle, William N. Rezuke, Harry R. Gossling, Brian J. Edwards, Marilyn A. Folcik, Kevin K. McCully and Joseph A. Knight and has published in prestigious journals such as Nucleic Acids Research, Methods in enzymology on CD-ROM/Methods in enzymology and Clinical Chemistry.

In The Last Decade

Sidney M. Hopfer

27 papers receiving 704 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Sidney M. Hopfer United States 15 260 185 142 96 67 27 754
J. B. Stevens United States 18 168 0.6× 149 0.8× 135 1.0× 192 2.0× 138 2.1× 53 1.1k
Noburu Ishinishi Japan 15 340 1.3× 51 0.3× 85 0.6× 122 1.3× 44 0.7× 50 760
Miho Sakurai Japan 15 248 1.0× 53 0.3× 62 0.4× 96 1.0× 130 1.9× 22 623
M. Spycher Switzerland 20 62 0.2× 262 1.4× 177 1.2× 232 2.4× 65 1.0× 51 1.3k
J. S. Morris United States 13 225 0.9× 115 0.6× 311 2.2× 91 0.9× 24 0.4× 34 938
Tomasz Opala Poland 14 158 0.6× 118 0.6× 59 0.4× 56 0.6× 55 0.8× 82 870
B Aberg Sweden 18 200 0.8× 268 1.4× 57 0.4× 159 1.7× 97 1.4× 58 1.1k
Gitte Nielsen Denmark 14 248 1.0× 36 0.2× 138 1.0× 35 0.4× 46 0.7× 20 785
Masa-oki Yamada Japan 18 77 0.3× 265 1.4× 123 0.9× 108 1.1× 132 2.0× 87 978
Xin Song China 18 358 1.4× 52 0.3× 93 0.7× 231 2.4× 90 1.3× 49 1.1k

Countries citing papers authored by Sidney M. Hopfer

Since Specialization
Citations

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

Fields of papers citing papers by Sidney M. Hopfer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Sidney M. Hopfer. 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 Sidney M. Hopfer. The network helps show where Sidney M. Hopfer may publish in the future.

Co-authorship network of co-authors of Sidney M. Hopfer

This figure shows the co-authorship network connecting the top 25 collaborators of Sidney M. Hopfer. A scholar is included among the top collaborators of Sidney M. Hopfer 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 Sidney M. Hopfer. Sidney M. Hopfer 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.
Wu, Alan H.B., Andrew Smith, R B McComb, et al.. (2008). State-wide hospital clinical laboratory plan for measuring cholinesterase activity for individuals suspected of exposure to nerve agent chemical weapons. Clinical Toxicology. 46(2). 110–116. 3 indexed citations
2.
Abbott, Mary‐Alice, Dorothy Wakefield, Craig Lapin, et al.. (2008). Improved pulmonary and growth outcomes in cystic fibrosis by newborn screening. Pediatric Pulmonology. 43(7). 648–655. 29 indexed citations
3.
Hopfer, Sidney M., et al.. (2004). Effect of protein on hemoglobin and hematocrit assays with a conductivity-based point-of-care testing device: comparison with optical methods.. PubMed. 34(1). 75–82. 41 indexed citations
4.
Makowski, Gregory S., et al.. (2003). Single tube multiplex PCR detection of 27 cystic fibrosis mutations and 4 polymorphisms using neonatal blood samples collected on Guthrie cards.. PubMed. 33(3). 243–50. 4 indexed citations
5.
Makowski, Gregory S. & Sidney M. Hopfer. (1997). Measurement of Maternal Folate Status and Risk of Neural Tube Defects. Clinical Chemistry. 43(1). 185–186. 3 indexed citations
6.
Makowski, Gregory S., et al.. (1997). Amplification of Guthrie card DNA: Effect of guanidine thiocyanate on binding of natural whole blood PCR inhibitors. Journal of Clinical Laboratory Analysis. 11(2). 87–93. 12 indexed citations
7.
Lewis, Courtland G., et al.. (1995). Intraarticular carcinogenesis bioassays of CoCrMo and TiAlV alloys in rats. The Journal of Arthroplasty. 10(1). 75–82. 26 indexed citations
8.
Makowski, Gregory S., et al.. (1995). Enhanced direct amplification of Guthrie card DNA following selective elution of PCR inhibitors. Nucleic Acids Research. 23(18). 3788–3789. 33 indexed citations
9.
Hopfer, Sidney M., et al.. (1994). Malformations persist after metamorphosis of Xenopus laevis tadpoles exposed to Ni2+, Co2+, or Cd2+ in FETAX assays. Teratogenesis Carcinogenesis and Mutagenesis. 14(3). 135–144. 38 indexed citations
10.
Hopfer, Sidney M., et al.. (1991). Teratogenicity of cobalt chloride in Xenopus laevis, assayed by the FETAX procedure. Teratogenesis Carcinogenesis and Mutagenesis. 11(2). 83–92. 25 indexed citations
11.
Makowski, Gregory S., et al.. (1991). Detection of two Zn-finger proteins ofXenopus laevis, TFIIIA, and p43, by probing western blots of ovary cytosol with65Zn2+,63Ni2+, or109Cd2+. Biological Trace Element Research. 29(2). 93–109. 27 indexed citations
12.
Lewis, Courtland G., et al.. (1991). Cobalt in periprosthetic soft tissue: Observations in 6 revision cases. Acta Orthopaedica Scandinavica. 62(5). 447–450. 14 indexed citations
13.
Hopfer, Sidney M., et al.. (1991). Teratogenicity of Ni2+ inXenopus laevis, assayed by the FETAX procedure. Biological Trace Element Research. 29(3). 203–216. 25 indexed citations
14.
Kilburn, Kaye H., Raphael Warshaw, C. Thomas Boylen, et al.. (1990). Cross‐shift and chronic effects of stainless‐steel welding related to internal dosimetry of chromium and nickel. American Journal of Industrial Medicine. 17(5). 607–615. 23 indexed citations
15.
Sunderman, F. William, et al.. (1989). Toxicity to alveolar macrophages in rats following parenteral injection of nickel chloride. Toxicology and Applied Pharmacology. 100(1). 107–118. 46 indexed citations
16.
Dostal, Lori A., et al.. (1989). Effects of nickel chloride on lactating rats and their suckling pups, and the transfer of nickel through rat milk. Toxicology and Applied Pharmacology. 101(2). 220–231. 16 indexed citations
17.
Sunderman, F. William, B. Dingle, Sidney M. Hopfer, & Thomas R. Swift. (1988). Acute nickel toxicity in electroplating workers who accidently ingested a solution of nickel sulfate and nickel chloride. American Journal of Industrial Medicine. 14(3). 257–266. 108 indexed citations
18.
Carey, Dennis E. & Sidney M. Hopfer. (1987). Hypophosphatemic rickets with hypercalciuria and microglobulinuria. The Journal of Pediatrics. 111(6). 860–863. 2 indexed citations
19.
Sunderman, F. William, Sidney M. Hopfer, Joseph A. Knight, et al.. (1987). Physicochemical characteristics and biological effects of nickel oxides. Carcinogenesis. 8(2). 305–313. 44 indexed citations
20.
Sunderman, F. William, Kevin K. McCully, & Sidney M. Hopfer. (1984). Association between erythrocytosis and renal cancers in rats following intrarenal injection of nickel compounds. Carcinogenesis. 5(11). 1511–1517. 17 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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