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Expert Opinion
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Plain Language Summary
Expert Review
Text Availability
Abstract
109
Full text
74
Free full text
38
Publication Types
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108
Randomized Controlled Trial
71
Comparative Study
34
Research Support, Non-U.S. Gov't
26
Review
16
Clinical Trial
16
Multicenter Study
7
Systematic Review
6
Observational Study
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Meta-Analysis
3
Case Reports
3
Research Support, U.S. Gov't, Non-P.H.S.
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Clinical Trial, Phase II
1
Evaluation Study
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Clinical Trial, Phase I
1
Practice Guideline
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Retracted Publication
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Clinical Trial, Phase IV
1
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2016
9
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6
2013
3
2012
8
2011
2
2010
5
2008
3
2007
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2006
8
2005
3
2004
5
2003
2
2002
2
2001
1

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""Tramadol""[mesh_terms]

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