Beaumont, J. L., Havlik, R., Cook, K. F., Hays, R. D., Wallner-Allen, K., Korper, S. P., . . . Gershon, R. C.  (2013). Norming plans for the NIH Toolbox. Neurology, 80(11 Supplement 3), S87-S92. http://www.ncbi.nlm.nih.gov/pubmed/23479550