Ahmed C. Khalifa

548 total citations
7 papers, 403 citations indexed

About

Ahmed C. Khalifa is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Oncology. According to data from OpenAlex, Ahmed C. Khalifa has authored 7 papers receiving a total of 403 indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Pulmonary and Respiratory Medicine, 4 papers in Surgery and 3 papers in Oncology. Recurrent topics in Ahmed C. Khalifa's work include Gastric Cancer Management and Outcomes (3 papers), Esophageal Cancer Research and Treatment (3 papers) and Colorectal Cancer Screening and Detection (2 papers). Ahmed C. Khalifa is often cited by papers focused on Gastric Cancer Management and Outcomes (3 papers), Esophageal Cancer Research and Treatment (3 papers) and Colorectal Cancer Screening and Detection (2 papers). Ahmed C. Khalifa collaborates with scholars based in Germany and United States. Ahmed C. Khalifa's co-authors include Heiko Pohl, Thomas Rösch, Martin Koch, Ioannis S. Papanikolaou, Bertram Wiedenmann, Alexander Meining, Michael Vieth, Valentin Becker, Mario Anders and Hassan Abou‐Rebyeh and has published in prestigious journals such as Gut, Gastrointestinal Endoscopy and Digestive Diseases and Sciences.

In The Last Decade

Ahmed C. Khalifa

7 papers receiving 385 citations

Peers

Countries citing papers authored by Ahmed C. Khalifa

Since Specialization

Citations

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

Fields of papers citing papers by Ahmed C. Khalifa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ahmed C. Khalifa. 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 Ahmed C. Khalifa. The network helps show where Ahmed C. Khalifa may publish in the future.

Co-authorship network of co-authors of Ahmed C. Khalifa

This figure shows the co-authorship network connecting the top 25 collaborators of Ahmed C. Khalifa. A scholar is included among the top collaborators of Ahmed C. Khalifa 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 Ahmed C. Khalifa. Ahmed C. Khalifa is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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7 of 7 papers shown

#	Work	Indexed citations
1	Probe-Based Confocal Laser Microscopy Identifies Criteria Predictive of Active Celiac Sprue 2011 ·Digestive Diseases and Sciences ·Heiko Pohl, (unknown), Birgit Rudolph, Alexander Meining, Ahmed C. Khalifa, Thomas Rösch, Daniel C. Baumgart	3
2	Miniprobe confocal laser microscopy for the detection of invisible neoplasia in patients with Barrett’s oesophagus 2008 ·Gut ·Heiko Pohl, Thomas Rösch, Michael Vieth, Martin Koch, Valentin Becker, Mario Anders, Ahmed C. Khalifa, Alexander Meining	150
3	Accuracy of Miniprobe Confocal Laser Microscopy for the Detection of Barrett Neoplasia 2008 ·Gastrointestinal Endoscopy ·Heiko Pohl, Thomas Röesch, Michael Vieth, Martin Koch, Valentin Becker, Ahmed C. Khalifa, Alexander Meining	1
4	Evaluation of endocytoscopy in the surveillance of patients with Barrett’s esophagus 2007 ·Endoscopy ·Heiko Pohl, Martin Koch, Ahmed C. Khalifa, Ioannis S. Papanikolaou, (unknown), Bertram Wiedenmann, Thomas Rösch	49
5	A prospective randomised study on narrow-band imaging versus conventional colonoscopy for adenoma detection: does narrow-band imaging induce a learning effect? 2007 ·Gut ·Andreas Adler, Heiko Pohl, Ioannis S. Papanikolaou, Hassan Abou‐Rebyeh, Guido Schachschal, W Veltzke-Schlieker, Ahmed C. Khalifa, (unknown), Martin Koch, Bertram Wiedenmann, Thomas Rösch	193
6	Narrow Band Imaging (NBI) Influences the Learning Curve for Conventional Endoscopy - Final Results of a Prospective Randomized Study in the Detection of Colorectal Adenomas 2007 ·Gastrointestinal Endoscopy ·Andreas Adler, Ioannis S. Papanikolaou, Heiko Pohl, W Veltzke-Schlieker, Hassan Abou‐Rebyeh, Martin Koch, Ahmed C. Khalifa, (unknown), Thomas Röesch	5
7	Prospective, Randomized Comparison of Mechanical and Electronic Endoscopic Ultrasound Systems: Image Quality and Performance Parameters 2007 ·Gastrointestinal Endoscopy ·Ioannis S. Papanikolaou, Andreas Adler, (unknown), Ahmed C. Khalifa, W Veltzke-Schlieker, Heiko Pohl, (unknown), Alexander J. Eckardt, (unknown), Thomas Röesch	2

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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