"average age group of the 20 patients" == 60 years old
Is 20 a high enough sample size for any meaningful conclusion from a study like this?
Is 20 a high enough sample size for any meaningful conclusion from a study like this?
https://news.harvard.edu/gazette/story/2017/02/study-confirm...
University of Colorado Anschutz Medical Campus: Vitamin D reduces respiratory infections
https://www.sciencedaily.com/releases/2016/11/161116103005.h...