EJ Roth, KW Stenson, S Powley, J Oken… - Archives of physical …, 2010 - Elsevier
Roth EJ, Stenson KW, Powley S, Oken J, Primack S, Nussbaum SB, Berkowitz M. Expiratory
muscle training in spinal cord injury: a randomized controlled trial. OBJECTIVE: To assess …