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bn:03475905n
Noun Concept
JA
観察研究
EN
In fields such as epidemiology, social sciences, psychology and statistics, an observational study draws inferences from a sample to a population where the independent variable is not under the control of the researcher because of ethical concerns or logistical constraints. Wikipedia
Relations
Sources
IS A
治験
研究
HAS KIND
症例シリーズ
自然実験
症例対照研究
EN
Total Diet Study
HAS INSTANCE
時間動作研究
EN
Amboseli Elephant Research Project
FACET OF
臨床研究
FOLLOWS
治験
Wikidata
JA
観察研究

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