Association of Daily Physical Activity with Cervical Spinal Cord Areas in Multiple Sclerosis.

Valerie J Block, Shuiting Cheng, Jeremy Juwono, Richard Cuneo, Gina Kirkish, Amber M Alexander, Mahir Khan, Amit Akula, Eduardo Caverzasi, Nico Papinutto, William A Stern, San Francisco MS-EPIC Team University of California, Mark J Pletcher, Greg M Marcus, Jeffrey E Olgin, Stephen L Hauser, Jeffrey M Gelfand, Riley Bove, Bruce AC Cree, Roland G Henry