Thanks for reaching out, we are glad that you found the ADHD-200 preprocessed data useful!

Please cite our recent publication in NeuroImage (https://www.ncbi.nlm.nih.gov/pubmed/2742...). Also please include a reference to the pipeline used (e.g. Athena).
Once you have a pre-print or the paper is published, please send us a link so that we can add your paper to our list of publications that use the data: http://preprocessed-connectomes-project....