1. Neurology, Billings Clinic, Billings, Montana, USA (M. D. Gaddy); Healing Dimensions ACC, Tucson, Arizona, USA (B. Baum); Billings Clinic, Billings, Montana, USA (B. Kiesow); Piedmont Research Strategies, Greensboro, North Carolina, USA (N. C. Coombs, E. R. Beamon); Collaborative Science & Innovation, Billings Clinic, Billings, Montana, USA (Y. Mullowney, G. C. Williams, J. M. Brant)