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Johnson, Alan L.

Johnson, Alan L.

Pennsylvania State University, United States

2025 Rank: 47,474

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Clinical Medicine

SubField 1:

Obstetrics & Reproductive Medicine

SubField 2:

Dairy & Animal Science

Rank in SubField 1: 426 out of 101,272 Researchers

Data For The Year: 2025
Metrics Self-Citations Excluded All
Rank Based on Composite Score47,47447,254
Total Cites5,0135,768
H-index3741
Hm-index2526
Number of Single Authored Papers1818
Total Cites to Single Authored Papers751781
Number of Single+First Authored Papers6565
Total Cites to Single+First Authored Papers2,1072,399
Number of Single+First+Last Authored Papers123123
Total Cites to Single+First+Last Authored Papers3,9124,567
Composite Score33
Number of Distinct Citing Papers3,3203,442
Ratio of Total Citations to Distinct Citing Papers 1.51 1.68
Self-Citation Percentage
13.09%
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Johnson, Alan L.

Johnson, Alan L.

Pennsylvania State University, United States

2024 Rank: 46,819

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Clinical Medicine

SubField 1:

Obstetrics & Reproductive Medicine

SubField 2:

Dairy & Animal Science

Rank in SubField 1: 419 out of 96,407 Researchers

Data For The Year: 2024
Metrics Self-Citations Excluded All
Rank Based on Composite Score46,81947,628
Total Cites4,7345,489
H-index3740
Hm-index2425
Number of Single Authored Papers1818
Total Cites to Single Authored Papers669699
Number of Single+First Authored Papers6565
Total Cites to Single+First Authored Papers1,9612,253
Number of Single+First+Last Authored Papers123123
Total Cites to Single+First+Last Authored Papers3,6594,314
Composite Score33
Number of Distinct Citing Papers3,1623,284
Ratio of Total Citations to Distinct Citing Papers 1.50 1.67
Self-Citation Percentage
13.75%
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Johnson, Alan L.

Johnson, Alan L.

Pennsylvania State University, United States

2023 Rank: 46,667

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Clinical Medicine

SubField 1:

Obstetrics & Reproductive Medicine

SubField 2:

Dairy & Animal Science

Rank in SubField 1: 426 out of 91,902 Researchers

Data For The Year: 2023
Metrics Self-Citations Excluded All
Rank Based on Composite Score46,66746,494
Total Cites4,4965,250
H-index3639
Hm-index2425
Number of Single Authored Papers1818
Total Cites to Single Authored Papers604634
Number of Single+First Authored Papers6565
Total Cites to Single+First Authored Papers1,8222,114
Number of Single+First+Last Authored Papers123123
Total Cites to Single+First+Last Authored Papers3,4484,103
Composite Score33
Number of Distinct Citing Papers3,0243,145
Ratio of Total Citations to Distinct Citing Papers 1.49 1.67
Self-Citation Percentage
14.36%
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Johnson, Alan L.

Johnson, Alan L.

Pennsylvania State University, United States

2022 Rank: 49,312

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Clinical Medicine

SubField 1:

Obstetrics & Reproductive Medicine

SubField 2:

Dairy & Animal Science

Rank in SubField 1: 454 out of 87,536 Researchers

Data For The Year: 2022
Metrics Self-Citations Excluded All
Rank Based on Composite Score49,31247,414
Total Cites4,1624,914
H-index3437
Hm-index2224
Number of Single Authored Papers1818
Total Cites to Single Authored Papers525555
Number of Single+First Authored Papers6565
Total Cites to Single+First Authored Papers1,6531,944
Number of Single+First+Last Authored Papers123123
Total Cites to Single+First+Last Authored Papers3,1483,802
Composite Score33
Number of Distinct Citing Papers2,8442,964
Ratio of Total Citations to Distinct Citing Papers 1.46 1.66
Self-Citation Percentage
15.30%
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Johnson, Alan L.

Johnson, Alan L.

Pennsylvania State University, United States

2021 Rank: 47,237

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Clinical Medicine

SubField 1:

Obstetrics & Reproductive Medicine

SubField 2:

Dairy & Animal Science

Rank in SubField 1: 437 out of 85,185 Researchers

Data For The Year: 2021
Metrics Self-Citations Excluded All
Rank Based on Composite Score47,23745,768
Total Cites4,0624,809
H-index3437
Hm-index2224
Number of Single Authored Papers1818
Total Cites to Single Authored Papers507537
Number of Single+First Authored Papers6565
Total Cites to Single+First Authored Papers1,6131,903
Number of Single+First+Last Authored Papers122122
Total Cites to Single+First+Last Authored Papers3,0633,714
Composite Score33
Number of Distinct Citing Papers2,7832,901
Ratio of Total Citations to Distinct Citing Papers 1.46 1.66
Self-Citation Percentage
15.53%
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Johnson, Alan L.

Johnson, Alan L.

Pennsylvania State University, United States

2020 Rank: 49,322

Overall Rank
Rank in SubField 1
Publications
Citations
Main Field:

Clinical Medicine

SubField 1:

Obstetrics & Reproductive Medicine

SubField 2:

Endocrinology & Metabolism

Rank in SubField 1: 478 out of 66,536 Researchers

Data For The Year: 2020
Metrics Self-Citations Excluded All
Rank Based on Composite Score49,32246,350
Total Cites3,7154,446
H-index3135
Hm-index2224
Number of Single Authored Papers1818
Total Cites to Single Authored Papers430459
Number of Single+First Authored Papers6565
Total Cites to Single+First Authored Papers1,4211,708
Number of Single+First+Last Authored Papers122122
Total Cites to Single+First+Last Authored Papers2,7593,394
Composite Score33
Number of Distinct Citing Papers2,5842,701
Ratio of Total Citations to Distinct Citing Papers 1.44 1.65
Self-Citation Percentage
16.44%
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