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observational trial
med. A type of clinical trial. In observational trials, researchers do not assign participants to a treatment or intervention. Instead, the researchers observe participants over time to determine health outcomes. see also clinical trial
observational: 17 phrases in 9 subjects
Chemistry2
Demography1
Health care1
Life sciences2
Mathematics2
Medical1
Meteorology5
Natural sciences2
Pharmacy and pharmacology1

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