Correction: Development and initial validation of the Orthotic Patient-Reported Outcomes—Mobility (OPRO-M): An item bank for evaluating mobility of people who use lower-limb orthoses
by Geoffrey S. Balkman, Alyssa M. Bamer, Phillip M. Stevens, Eric L. Weber, Sara J. Morgan, Rana Salem, Dagmar Amtmann, Brian J. Hafne