by Haley, Stephen M., PhD, Gandek, Barbara, MS, Siebens, Hilary, MD, Black-Schaffer, Randie M., MD, Sinclair, Samuel J., PhD, Tao, Wei, BS, Coster, Wendy J., PhD, Ni, Pengsheng, MD, Jette, Alan M., PhD
Published in Archives of physical medicine and rehabilitation (01.02.2008)