In those with unilateral frequent knee pain, between-limb differences in stance time during walking increase the risk of pain in the other knee: the most study. Issue 1 (April 2020) - Corrigan, P.; Felson, D.T.; Lewis, C.L.; Gross, K.D.; Nevitt, M.C.; Lewis, C.E.; Torner, J.C.; Stefanik, J.J.