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Features
Assistant
AI grounded in research
Search
Full-text citation search
Collections
Organize and monitor papers
All Features →
Integrations
MCP
Connect AI agents to Scite
API
Programmatic data access
Holdings
Full-text via your library
Zotero Plugin
Citation data in Zotero
Browser Extension
Citation badges anywhere
All Integrations →
Data
Rankings
Pricing
Log In
Start Free Trial
Niels Keiding
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515
Publications
16,739
Citation Statements Received
4,847
Citation Statements Given
How they've been cited
29,283
475
16,192
72
How they cite others
10,363
225
4,571
51
Affiliations
University of Copenhagen
,
Statistics Denmark
Publications
Order By: Most citations
Statistical Models Based on Counting Processes
Andersen
1
,
Borgan
2
,
Gill
3
et al.
1993
Abstract
Show
3,485
10
2,856
1
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Add to collection
Cite
Evidence for Decreasing Quality of Semen During Past 50 Years
Carlsen
1
,
Giwercman
2
,
Keiding
3
et al.
1993
Obstetrical & Gynecological Survey
Abstract
Show
758
26
766
1
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Add to collection
Cite
Evidence for decreasing quality of semen during past 50 years.
Carlsen
1
,
Giwercman
2
,
Keiding
3
et al.
1992
BMJ
Abstract
Show
2,668
15
666
2
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Cite
Male reproductive health and environmental xenoestrogens.
Toppari
1
,
Larsen
2
,
Christiansen
3
et al.
1996
Environ Health Perspect
Abstract
Show
1,367
15
577
1
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Cite
Multi-state models for event history analysis
Andersen
1
,
Keiding
2
2002
Stat Methods Med Res
Abstract
Show
640
3
560
0
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Cite
Thrombotic Stroke and Myocardial Infarction with Hormonal Contraception
Lidegaard
1
,
Løkkegaard
2
,
Jensen
3
et al.
2012
N Engl J Med
Abstract
Show
617
11
336
4
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Cite
Male Reproductive Health and Environmental Xenoestrogens
Toppari
1
,
Larsen
2
,
Christiansen
3
et al.
1996
Environmental Health Perspectives
Abstract
Show
560
11
347
0
Get access via publisher
Add to collection
Cite
Regional differences in semen quality in Europe
Jørgensen
1
,
Andersen
2
,
Eustache
3
et al.
2001
Abstract
Show
453
20
273
2
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Add to collection
Cite
1
2
3
4