I have some friends in this field as well (though they are in small sample size things, like specific breast cancer trials). Some of the fact-finding looks lik

I have some friends in this field as well (though they are in small sample size things, like specific breast cancer trials). Some of the fact-finding looks like calling up every patient who has gone through their treatment, but they have agreed to cooperate extensively in order to get into their trials. I can't imagine how painful it is to do fact-finding on this scale.