1. Army Individual Test Battery. Manual of Directions and Scoring. War Department, Adjutant General's Office, Washington, DC (1994).
2. Reitan, R.M. & Wolfson, D. The Halstead–Reitan Neuropsychological Test Battery: Theory and Clinical Interpretation 2nd edn (Neuropsychology Press, Tuscon, AZ, 1993).
3. Spreen, O. & Strauss, E. A Compendium of Neuropsychological Tests. Administration, Norms, and Commentary edn. Oxford University Press, New York, 1998).
4. Thompson, M.D. et al. Clinical utility of the Trail Making Test practice time. Clin. Neuropsychol. 13, 450–455 (1999).
5. Klusman, L.E., Cripe, L.I. & Dodrill, C.B. Analysis of errors on the Trail Making Test. Percept. Mot. Skills 68, 1199–1204 (1989).