Dear experts,
After looking at the REGISTRY file, I see that many participants went through screening without any indication of issues, but have no follow-up data - this includes even absence of a baseline appointment. Am I missing information? Or how do I find out why a participant may have passed screening but then failed to have any further appointments? Thank you.
Please refer to a previous response from Ask the Experts:
http://adni.loni.usc.edu/support/experts-knowledge-base/question/?QID=119