2- nope, and actually my entire research agenda has been around helping people find a treatment that is most likely to work for them specifically! (we also founded a company to bring the research to market- springhealth.com)
3- that is beyond the scope of the paper, and we didnt use the word hospitalized once
4- yep, and thats a good example of one of the pitfalls of self-reported surveys. in general, i am a bit less cynical and in our experience, most people aren't filling out surveys to intentionally lie or sabotage.
hope this helps!