Submaximal exercise in persons with stroke: test-retest reliability and concurrent validity with maximal oxygen consumption.
Arch Phys Med Rehabil. 2004 Jan;85(1):113-8. doi: 10.1016/s0003-9993(03)00436-2.
Arch Phys Med Rehabil. 2004.
PMID: 14970978
Free PMC article.