Why Observational Studies shouldn’t be used to assess Respiratory Virus Interventions - Part 3
A response to several helpful comments.
We are responding to several points raised by our previous post on this topic. They are interesting and require a response which is more detailed than commentary space allows and makes readable.
Observational studies do have a role in answering specific questions, and there's a long history of using case-control methods, for instance, to inform decisions…
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