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Callahan, Robert

Callahan, Robert

National Cancer Institute (NCI), United States

2025 Rank: 113,168

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Clinical Medicine

SubField 1:

Oncology & Carcinogenesis

SubField 2:

Virology

Rank in SubField 1: 4,304 out of 355,674 Researchers

Data For The Year: 2025
Metrics Self-Citations Excluded All
Rank Based on Composite Score113,168120,638
Total Cites5,4135,967
H-index3942
Hm-index1616
Number of Single Authored Papers66
Total Cites to Single Authored Papers133136
Number of Single+First Authored Papers3535
Total Cites to Single+First Authored Papers846905
Number of Single+First+Last Authored Papers8989
Total Cites to Single+First+Last Authored Papers3,3473,660
Composite Score33
Number of Distinct Citing Papers4,1124,349
Ratio of Total Citations to Distinct Citing Papers 1.32 1.37
Self-Citation Percentage
9.28%
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Callahan, Robert

Callahan, Robert

National Institutes of Health (NIH), United States

2024 Rank: 104,844

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Clinical Medicine

SubField 1:

Oncology & Carcinogenesis

SubField 2:

Virology

Rank in SubField 1: 4,075 out of 334,837 Researchers

Data For The Year: 2024
Metrics Self-Citations Excluded All
Rank Based on Composite Score104,844111,619
Total Cites5,3315,886
H-index3942
Hm-index1516
Number of Single Authored Papers66
Total Cites to Single Authored Papers133136
Number of Single+First Authored Papers3535
Total Cites to Single+First Authored Papers838898
Number of Single+First+Last Authored Papers8989
Total Cites to Single+First+Last Authored Papers3,2993,613
Composite Score33
Number of Distinct Citing Papers4,0454,283
Ratio of Total Citations to Distinct Citing Papers 1.32 1.37
Self-Citation Percentage
9.43%
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Callahan, Robert

Callahan, Robert

National Cancer Institute (NCI), United States

2023 Rank: 98,861

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Clinical Medicine

SubField 1:

Oncology & Carcinogenesis

SubField 2:

Virology

Rank in SubField 1: 3,899 out of 312,644 Researchers

Data For The Year: 2023
Metrics Self-Citations Excluded All
Rank Based on Composite Score98,861103,820
Total Cites5,2375,789
H-index3842
Hm-index1516
Number of Single Authored Papers66
Total Cites to Single Authored Papers131134
Number of Single+First Authored Papers3535
Total Cites to Single+First Authored Papers819879
Number of Single+First+Last Authored Papers8989
Total Cites to Single+First+Last Authored Papers3,2413,555
Composite Score33
Number of Distinct Citing Papers3,9644,200
Ratio of Total Citations to Distinct Citing Papers 1.32 1.38
Self-Citation Percentage
9.54%
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Callahan, Robert

Callahan, Robert

National Cancer Institute (NCI), United States

2022 Rank: 90,663

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Clinical Medicine

SubField 1:

Oncology & Carcinogenesis

SubField 2:

Virology

Rank in SubField 1: 3,625 out of 293,195 Researchers

Data For The Year: 2022
Metrics Self-Citations Excluded All
Rank Based on Composite Score90,66396,434
Total Cites5,0925,637
H-index3841
Hm-index1516
Number of Single Authored Papers66
Total Cites to Single Authored Papers129132
Number of Single+First Authored Papers3535
Total Cites to Single+First Authored Papers782842
Number of Single+First+Last Authored Papers8989
Total Cites to Single+First+Last Authored Papers3,1593,471
Composite Score33
Number of Distinct Citing Papers3,8424,072
Ratio of Total Citations to Distinct Citing Papers 1.33 1.38
Self-Citation Percentage
9.67%
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Callahan, Robert

Callahan, Robert

National Cancer Institute (NCI), United States

2021 Rank: 87,948

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Clinical Medicine

SubField 1:

Oncology & Carcinogenesis

SubField 2:

Virology

Rank in SubField 1: 3,522 out of 271,773 Researchers

Data For The Year: 2021
Metrics Self-Citations Excluded All
Rank Based on Composite Score87,94892,442
Total Cites4,9995,535
H-index3740
Hm-index1516
Number of Single Authored Papers66
Total Cites to Single Authored Papers127130
Number of Single+First Authored Papers3535
Total Cites to Single+First Authored Papers765824
Number of Single+First+Last Authored Papers8989
Total Cites to Single+First+Last Authored Papers3,1013,410
Composite Score33
Number of Distinct Citing Papers3,7734,000
Ratio of Total Citations to Distinct Citing Papers 1.32 1.38
Self-Citation Percentage
9.68%
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