RT Journal Article SR Electronic T1 Kersten RF, Stevens M, van Raay JJAM, et al. Habitual physical activity after total knee replacement: analysis in 830 patients and comparison with a sex- and age-matched normative population. Phys Ther. doi: 10.demo/ptj.20110273. JF Demo Journal of Physical Therapy FD HighWire Press SP 1079 OP 1079 DO 10.demo/ptj.20110273.cx VO 92 IS 8 YR 2012 UL http://demo.highwire.org/content/92/8/1079.1.abstract AB