1 Division of Physical Medicine and Rehabilitation, Department of Orthopaedic Surgery, Stanford University, Redwood City, CA(∗).
2 Rehabilitation Services, Stanford Healthcare, Redwood City, CA(†).
3 Division of Physical Medicine and Rehabilitation, Department of Orthopaedic Surgery, Stanford University, Redwood City, CA(‡).
4 Division of Physical Medicine and Rehabilitation, Department of Orthopaedic Surgery, Stanford University, 450 Broadway St, Pavilion C, MC6342, Redwood City, CA 94063(§). Electronic address: msmuck@stanford.edu.