I have been inquiring about the possibility of accessing non-north-American WW-ADNI data. We understand that such data are not available on ida.loni.usc.edu; is there any other place where these data can be accessed?
The USC LONI website does host a number of non-No American ADNI data sets.
The Austrailian AIBL data set resembles ADNI in some ways.
Japanese ADNI data is available through their website
Washington University has a number of large data sets available, possibly including DIAN data
UK Biobank is another good source
https://www.niagads.org/datasets