Need more information on NACC CSV Filed

[ronakkkk]

I am trying to reproduce the results and I have the access with NACC dataset, but I am not able to find four CSV file which you have used in derived tables section.

Following are the four files which I am facing issue to get the hands on, please if you could share if you have alter or modify the data that you received from NACC.

1. kolachalama12042020apet.csv
2. kolachalama12042020csf.csv
3. kolachalama12042020.csv
4. kolachalama12042020mri.csv

Please if you could share more insights on dataset used, would be helpful.