Isn't the experiment to show the effects? Why would a country matter , it's about people. It wasn't to see if the country could implement it. Drug trials often

Isn't the experiment to show the effects? Why would a country matter , it's about people. It wasn't to see if the country could implement it. Drug trials often include can go to several thousand but only in a later stage, earlier stages are a few hundred. https://www.fda.gov/patients/drug-development-process/step-3-clinical-research https://www.fda.gov/patients/drug-development-process/step-3...