Measuring Postconcussive Activity Levels of Patients: Step Count or Activity Intensity? Reply

Wiebe, DJ; Nance, ML; Master, CL

Wiebe, DJ (reprint author), Univ Penn, Perelman Sch Med, Dept Biostat & Epidemiol, 423 Guardian Dr,Blockley Hall,Room 902, Philadelphia, PA 19104 USA.

JAMA PEDIATRICS, 2017; 171 (5): 494