Observational study

https://www.wikidata.org/wiki/Q818574

Field Hierarchy

Parent
Medicine 50.4M papers	Mathematics 22.2M papers	Internal medicine 21.1M papers	Pathology 9.2M papers
Statistics 6.3M papers
Current
Observational study 227k papers
Child
Marginal structural model 1,227 papers	Strengthening the reporting of observational studies in epidemiology 1,204 papers	Observational methods in psychology 1,171 papers	Women's Health Initiative 1,092 papers

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History