“Safety and Efficacy of the BNT162b2 mRNA Covid-19 Vaccine”: describe a randomized clinical control study or an epidemiological study? Identify at least one pro and one con of that type of study.
“Safety and Efficacy of the BNT162b2 mRNA Covid-19 Vaccine” Describe a randomized clinical control study or an epidemiological study? Identify at least one pro and one con of that type of study. What is the sample size used in the study described in this paper? Identify one example of a dependent variable in the study … Read more