Jacob D. Bolzenius, David H. Laidlaw, Ryan Cabeen, Thomas E. Conturo, Amanda R. McMichael, Elizabeth M. Lane, Jodi M. Heaps, Lauren E. Salminen, Laurie M. Baker, John Gunstad, and Robert H. Paul. Impact of body mass index on neuronal fiber bundle lengths among healthy older adults. Brain Imaging and Behavior, 2013.