50-FOOT WALKING TIME: A CRITICAL ASSESSMENT OF AN OUTCOME MEASURE IN CLINICAL THERAPEUTIC TRIALS OF ANTIRHEUMATIC DRUGS
- 1 October 1988
- journal article
- research article
- Published by Oxford University Press (OUP) in Rheumatology
- Vol. 27 (5), 372-374
- https://doi.org/10.1093/rheumatology/27.5.372