![Can real-world evidence help identify treatments for COVID-19?](https://blogs.sas.com/content/subconsciousmusings/files/2020/09/jackolatern-covid-702x336.jpg)
A note from Udo Sglavo: The need for randomization in experimental design was introduced by the statistician R. A. Fisher in 1925, in his book Statistical Methods for Research Workers. You would assume that developing a successful treatment for COVID-19, the illness caused by the SARS-CoV-2 virus, will eventually conclude in