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Chapman, Roger W.

Chapman, Roger W.

Nuffield Department of Medicine, United Kingdom

2024 Rank: 21,334

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Clinical Medicine

SubField 1:

Gastroenterology & Hepatology

SubField 2:

General & Internal Medicine

Rank in SubField 1: 336 out of 103,730 Researchers

Data For The Year: 2024
Metrics Self-Citations Excluded All
Rank Based on Composite Score21,33423,009
Total Cites15,40617,992
H-index6466
Hm-index2627
Number of Single Authored Papers3535
Total Cites to Single Authored Papers419447
Number of Single+First Authored Papers6464
Total Cites to Single+First Authored Papers2,9813,163
Number of Single+First+Last Authored Papers161161
Total Cites to Single+First+Last Authored Papers6,0066,507
Composite Score33
Number of Distinct Citing Papers11,02612,089
Ratio of Total Citations to Distinct Citing Papers 1.40 1.49
Self-Citation Percentage
14.37%
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Chapman, Roger W.

Chapman, Roger W.

Nuffield Department of Medicine, United Kingdom

2023 Rank: 21,700

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Clinical Medicine

SubField 1:

Gastroenterology & Hepatology

SubField 2:

General & Internal Medicine

Rank in SubField 1: 348 out of 98,720 Researchers

Data For The Year: 2023
Metrics Self-Citations Excluded All
Rank Based on Composite Score21,70023,138
Total Cites14,24316,554
H-index6164
Hm-index2626
Number of Single Authored Papers3434
Total Cites to Single Authored Papers400426
Number of Single+First Authored Papers6060
Total Cites to Single+First Authored Papers2,7102,896
Number of Single+First+Last Authored Papers157157
Total Cites to Single+First+Last Authored Papers5,6636,165
Composite Score33
Number of Distinct Citing Papers10,35111,379
Ratio of Total Citations to Distinct Citing Papers 1.38 1.45
Self-Citation Percentage
13.96%
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Chapman, Roger W.

Chapman, Roger W.

Nuffield Department of Clinical Medicine, United Kingdom

2020 Rank: 20,606

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Clinical Medicine

SubField 1:

Gastroenterology & Hepatology

SubField 2:

Immunology

Rank in SubField 1: 334 out of 76,367 Researchers

Data For The Year: 2020
Metrics Self-Citations Excluded All
Rank Based on Composite Score20,60620,600
Total Cites11,69413,568
H-index5359
Hm-index2325
Number of Single Authored Papers3131
Total Cites to Single Authored Papers357379
Number of Single+First Authored Papers5656
Total Cites to Single+First Authored Papers2,3492,509
Number of Single+First+Last Authored Papers149149
Total Cites to Single+First+Last Authored Papers4,9065,382
Composite Score34
Number of Distinct Citing Papers8,6689,537
Ratio of Total Citations to Distinct Citing Papers 1.35 1.42
Self-Citation Percentage
13.81%
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