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((Navbox
 | name = Medical research studies
 | title = [[Clinical research]] and [[Design of experiments|experimental design]]
 | state = (({state|autocollapse))}
 | bodyclass = hlist

 | group1 = Overview
 | list1 = 
* [[Clinical trial]]
** [[Protocol (science)|Trial protocols]]
** [[Adaptive clinical trial]]
* [[Academic clinical trials]]
* [[Clinical study design]]
* [[Evidence-based medicine]]
* [[Real world evidence]]
* [[Patient and public involvement]]


 | group2 = [[Scientific control|Controlled study]]<br />([[Hierarchy of evidence#USA|EBM I to II-1]])
 | list2 = 
* [[Randomized controlled trial]]
**[[Experiment|Scientific experiment]]
**[[Blind experiment]]
**[[Open-label trial]]
* [[Adaptive clinical trial]]
**[[Platform trial]]

 | group3 = [[Observational study]]<br />([[Hierarchy of evidence#USA|EBM II-2 to II-3]])
 | list3 =
* [[Cross-sectional study]] vs. [[Longitudinal study]], [[Ecological study]]
* [[Cohort study]]
** [[Retrospective cohort study|Retrospective]]
** [[Prospective cohort study|Prospective]]
* [[Case–control study]] ([[Nested case–control study]])
* [[Case series]]
* [[Case study]]
* [[Case report]]

 | group4 = [[Outcome measure|Measures]]
 | list4 = ((Navbox|child

   | group1 = [[Epidemiological_methods#Measures_of_occurrence|Occurrence]]
   | list1 = [[Incidence (epidemiology)|Incidence]], [[Cumulative incidence]], [[Prevalence]], [[Point prevalence]], [[Period prevalence]]

   | group2 = [[Epidemiological_methods#Measures_of_association|Association]]
   | list2 = [[Risk difference]], [[Number needed to treat]], [[Number needed to harm]], [[Risk ratio]], [[Relative risk reduction]], [[Odds ratio]], [[Hazard ratio]]

   | group3 = [[Population impact measure|Population impact]]
   | list3 = [[Attributable fraction among the exposed]], [[Attributable fraction for the population]], [[Preventable fraction among the unexposed]], [[Preventable fraction for the population]]

   | group4 = [[Epidemiological_methods#Other_measures|Other]]
   | list4 = [[Clinical endpoint]], [[Virulence]], [[Infectivity]], [[Mortality rate]], [[Morbidity]], [[Case fatality rate]], [[Specificity and sensitivity]], [[Likelihood ratios in diagnostic testing|Likelihood-ratios]], [[Pre- and post-test probability]]
))

 | group5 = Trial/test types
 | list5 =
* [[In vitro]]
* [[In vivo]]
* [[Animal testing]]
* [[Animal testing on non-human primates]]
* [[First-in-man study]]
* [[Multicenter trial]]
* [[Seeding trial]]
* [[Vaccine trial]]

 | group6 = [[Analysis of clinical trials]]
 | list6 = 
* [[Risk–benefit ratio]]
* [[Systematic review]]
* [[Reproducibility|Replication]]
* [[Meta-analysis]]
* [[Intention-to-treat analysis]]

 | group7 = Interpretation of results
 | list7 = 
* [[Selection bias]]
* [[Survivorship bias]]
* [[Correlation does not imply causation]]
* [[Null result]]
* [[Sex as a biological variable]]

 | below = 
* '''[[:Category:Clinical research|Category]]'''
* '''[[Glossary of clinical research|Glossary]]'''
* '''[[List of clinical research topics|List of topics]]'''

))<noinclude>
((doc|content=
((collapsible option))
''This template is part of the [[Wikipedia:Navigation template#Medicine|Medical series]] of [[Wikipedia:Navigation template|navigation boxes]]. Refer to [[Template:Medicine]] and its [[Template_talk:Medicine|talk page]] for suggestions on style and editing.''

[[Category:Medicine navigational boxes|Research]]
[[Category:Statistics templates]]
))
</noinclude>

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