Patient-specific reference values for objective physical function tests: data from the Osteoarthritis Initiative.
Harkey MS, Price LL, Reid KF, Lo GH, Liu SH, Lapane KL, Dantas LO, McAlindon TE, Driban JB. Patient-specific reference values for objective physical function tests: data from the Osteoarthritis Initiative. Clin Rheumatol. 2020 Jun; 39(6):1961-1970.