Gait modifications occur even with mild to moderate unilateral knee pain: a machine learning approach using wearable sensors in the multicenter osteoarthritis study. (April 2021) - Bacon, K.L.; Jafarzadeh, S.R.; Kolachalama, V.B.; Hausdorff, J.M.; Gazit, E.; Kumar, D.; Segal, N.A.; Lewis, C.E.; Nevitt, M.C.; Felson, D.T.