Cochrane changed its withdrawal policy in 2019 which means that it doesn't matter how out of date a review is, it won't be withdrawn unless there is consensus that it causes harm - ie. never.
Isn't it actually impossible to create reliable evidence that treatments cause harm (at least intentionally) because it would be unethical by definition to do the studies to gather said evidence?
Isn't it actually impossible to create reliable evidence that treatments cause harm (at least intentionally) because it would be unethical by definition to do the studies to gather said evidence?
The evidence is being built as we speak. Many post-COVID-19 rehabilitation services are using exertion tests and exercise as treatment with the assumption that it promotes recovery.Isn't it actually impossible to create reliable evidence that treatments cause harm (at least intentionally) because it would be unethical by definition to do the studies to gather said evidence?