A group of people in a studyAn investigation of a healthcare problem. There are different types of studies used to answer research questions, for example randomised controlled trials or observational studies. receiving a particular health care interventionA treatment, procedure or programme of health care that has the potential to change the course of events of a healthcare condition. Examples include a drug, surgery, exercise or counselling. (for example a drug, surgery, or exercise).
Intervention group by Selena Ryan-Vig
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