Observational and interventional study design types; an overview (36 mins)
Read the entire article to learn about the applications, strengths, and limitations of: ecological studies, cross-sectional studies, case-control studies, cohort studies, and randomized controlled trials.
Click https://www.biochemia-medica.com/en/journal/24/2/10.11613/BM.2014.022/fullArticle link to open resource.