This map shows the geographic impact of Lefer Am'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 Lefer Am with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Lefer Am more than expected).
This network shows the impact of papers produced by Lefer Am. 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 Lefer Am. The network helps show where Lefer Am may publish in the future.
Co-authorship network of co-authors of Lefer Am
This figure shows the co-authorship network connecting the top 25 collaborators of Lefer Am.
A scholar is included among the top collaborators of Lefer Am 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 Lefer Am. Lefer Am 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.
Karasawa, Akira, et al.. (1992). Effects of adenosine, an adenosine-A1 antagonist, and their combination in splanchnic occlusion shock in rats.. PubMed. 36(2). 154–61.2 indexed citations
2.
Am, Lefer, et al.. (1988). Detection of platelet-activating factor during traumatic shock.. PubMed. 26(3). 237–44.19 indexed citations
3.
Am, Lefer, et al.. (1987). Efficacy of two leukotriene antagonists in rat traumatic shock.. PubMed. 9(5). 269–73.2 indexed citations
4.
Am, Lefer, et al.. (1987). Thromboxane A2 in health and disease.. PubMed. 46(1). 131–2.19 indexed citations
5.
Am, Lefer. (1987). Physiologic and pathophysiologic role of cyclo-oxygenase metabolites of arachidonic acid in circulatory disease states.. PubMed. 18(1). 85–99.8 indexed citations
6.
Darius, H, et al.. (1986). Cardioprotective actions of a new calcium channel blocker in acute myocardial ischemia.. PubMed. 36(3). 464–6.10 indexed citations
7.
Am, Lefer & George N. Papanicolaou. (1985). Beneficial actions of two novel calcium entry blockers in the isolated perfused hypoxic cat liver.. PubMed. 7(2). 59–63.10 indexed citations
8.
Am, Lefer & Hideo Araki. (1983). Analysis of potential beneficial actions of prostaglandins in traumatic shock.. PubMed. 111. 199–210.10 indexed citations
9.
Am, Lefer, et al.. (1983). Peripheral effects of opiate antagonists in shock.. PubMed. 10. 83–6.1 indexed citations
10.
Am, Lefer, et al.. (1982). Protective actions of nafazatrom in traumatic shock.. PubMed. 32(9). 1089–91.2 indexed citations
11.
Okamatsu, Shuichi, et al.. (1982). Protective actions of dexamethasone in acute cerebral ischemia.. PubMed. 9(4). 445–56.7 indexed citations
12.
Am, Lefer, et al.. (1982). Tissue uptake of 3H-naloxone in control and in hemorrhagic shock cats.. PubMed. 255(1). 48–58.2 indexed citations
13.
Am, Lefer, Hiromasa Araki, & Shuichi Okamatsu. (1981). Beneficial actions of a free radical scavenger in traumatic shock and myocardial ischemia.. PubMed. 8(3). 273–82.26 indexed citations
14.
Araki, Hiromasa, et al.. (1981). Biphasic actions of chlorpromazine and mepacrine on modulation of hepatic cell injury in the perfused cat liver.. PubMed. 249(1). 116–25.3 indexed citations
15.
Aharony, David, et al.. (1980). Pinane thromboxane A2: a TXA2 antagonist with antithrombotic properties.. PubMed. 6. 489–92.4 indexed citations
16.
Araki, Hiromasa & Lefer Am. (1979). Protective actions of aprotinin in acute traumatic shock.. PubMed. 241(2). 316–23.4 indexed citations
17.
Ogletree, Martin L., et al.. (1977). Early prostaglandin release from the ischemic myocardium in the dog.. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 144(5). 734–40.15 indexed citations
Am, Lefer, et al.. (1974). Preservation of myocardial integrity by a protease inhibitor during acute myocardial ischemia.. PubMed. 211(2). 225–36.12 indexed citations
20.
Am, Lefer, et al.. (1973). Protective action of a protease inhibitor in hemorrhagic shock.. PubMed. 203(2). 292–304.10 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.