This map shows the geographic impact of Robert Mullen'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 Robert Mullen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Robert Mullen more than expected).
This network shows the impact of papers produced by Robert Mullen. 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 Robert Mullen. The network helps show where Robert Mullen may publish in the future.
Co-authorship network of co-authors of Robert Mullen
This figure shows the co-authorship network connecting the top 25 collaborators of Robert Mullen.
A scholar is included among the top collaborators of Robert Mullen 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 Robert Mullen. Robert Mullen is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Faroqi‐Shah, Yasmeen, Tobi Frymark, Robert Mullen, & Beverly Wang. (2010). Evidence Based Systematic Review of Aphasia Therapy for bilingual individuals. The Aphasiology Archive (University of Pittsburgh).1 indexed citations
Frymark, Tobi, Tracy Schooling, Robert Mullen, et al.. (2009). Evidence-based systematic review: Oropharyngeal dysphagia behavioral treatments. Part I--background and methodology.. PubMed. 46(2). 175–83.9 indexed citations
5.
Wheeler‐Hegland, Karen, J. R. Ashford, Tobi Frymark, et al.. (2009). Evidence-based systematic review: Oropharyngeal dysphagia behavioral treatments. Part II--impact of dysphagia treatment on normal swallow function.. PubMed. 46(2). 185–94.22 indexed citations
6.
Wheeler‐Hegland, Karen, Tobi Frymark, Tracy Schooling, et al.. (2009). Evidence-based systematic review: Oropharyngeal dysphagia behavioral treatments. Part V--applications for clinicians and researchers.. PubMed. 46(2). 215–22.8 indexed citations
7.
Mullen, Robert, et al.. (2008). Common Cause Analysis: Focus on Institutional Change.10 indexed citations
Eimers, Mardy T. & Robert Mullen. (2003). Dual Credit and Advanced Placement: Do They Help Prepare Students for Success in College?.15 indexed citations
Eimers, Mardy T. & Robert Mullen. (1997). Transfer Students: Who Are They and How Successful Are They at the University of Missouri?.. College and university. 72(3). 9–19.4 indexed citations
14.
Heys, S, Robert Mullen, David Allison, & P. Gilbert. (1997). Homoserine lactones and bacterial biofims.. Research Explorer (The University of Manchester).2 indexed citations
15.
Mullen, Robert, et al.. (1993). Vibrio vulnificus infections associated with raw oyster consumption-Florida, 1981-1992. MMWR Morbidity and Mortality Weekly Report. 42(21). 405–407.60 indexed citations
16.
Hlady, W. Gary, et al.. (1993). Vibrio vulnificus from raw oysters. Leading cause of reported deaths from foodborne illness in Florida.. PubMed. 80(8). 536–8.54 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.