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. 2011 Dec 23;5:33. doi: 10.3389/fninf.2011.00033

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Copyright © 2011 Scott, Courtney, Wood, de la Garza, Lane, King, Wang, Roberts, Turner and Calhoun.

This is an open-access article distributed under the terms of the Creative Commons Attribution Non Commercial License, which permits non-commercial use, distribution, and reproduction in other forums, provided the original authors and source are credited.

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Key-only, ER Diagram of a portion of MRN’s database: mrs_subject_types is used for tracking controls, withdrawn, excluded, patient, and other user-definable classes of a participant in a study.