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RESEARCH PRODUCT
Avoiding Bias in Observational Studies
Maria BlettnerGaël P. HammerJean-baptist Du Prelsubject
Human healthmedicine.medical_specialtyRandomized controlled trialbusiness.industrylawMedicineObservational studyMedical physicsGeneral MedicinePublication biasbusinesslaw.inventiondescription
Background Many questions in human health research can only be answered with observational studies. In contrast to controlled experiments or well-planned, experimental randomized clinical trials, observational studies are subject to a number of potential problems that may bias their results.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-10-09 | Deutsches Ärzteblatt international |