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Year
O'Brien, Peter James

O'Brien, Peter James

University College Dublin, Ireland

2026 Rank: 7,760

Overall Rank
Rank in SubField 1
Publications
Total Cites
Main Field:

Biomedical Research

SubField 1:

Biochemistry & Molecular Biology

SubField 2:

Toxicology

Rank in SubField 1: 334 out of 216,826 Researchers

Data For The Year: 2026
Metrics Self-Citations Excluded All
Rank Based on Composite Score7,7608,508
Total Cites19,79621,231
H-index7072
Hm-index3637
Number of Single Authored Papers2828
Total Cites to Single Authored Papers1,9522,002
Number of Single+First Authored Papers6969
Total Cites to Single+First Authored Papers4,6214,767
Number of Single+First+Last Authored Papers280280
Total Cites to Single+First+Last Authored Papers14,49515,517
Composite Score44
Number of Distinct Citing Papers17,79018,479
Ratio of Total Citations to Distinct Citing Papers 1.11 1.15
Self-Citation Percentage
6.76%
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O'Brien, Peter James

O'Brien, Peter James

University College Dublin, Ireland

2025 Rank: 7,260

Overall Rank
Rank in SubField 1
Publications
Total Cites
Main Field:

Biomedical Research

SubField 1:

Biochemistry & Molecular Biology

SubField 2:

Toxicology

Rank in SubField 1: 323 out of 212,967 Researchers

Data For The Year: 2025
Metrics Self-Citations Excluded All
Rank Based on Composite Score7,2607,993
Total Cites19,07520,497
H-index6871
Hm-index3537
Number of Single Authored Papers2828
Total Cites to Single Authored Papers1,9011,951
Number of Single+First Authored Papers6969
Total Cites to Single+First Authored Papers4,4754,620
Number of Single+First+Last Authored Papers280280
Total Cites to Single+First+Last Authored Papers13,94614,960
Composite Score44
Number of Distinct Citing Papers17,11717,797
Ratio of Total Citations to Distinct Citing Papers 1.11 1.15
Self-Citation Percentage
6.94%
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