Diehr P, Chen L, Patrick D, Feng Z, Yasui Y. Reliability, effect size, and responsiveness of health status measures in the design of randomized and cluster-randomized trials. Contemp Clin Trials. 2005 Feb;26(1):45-58. Epub 2005 Jan 27.
Diehr P, Chen L, Patrick D, Feng Z, Yasui Y. Reliability, effect size, and responsiveness of health status measures in the design of randomized and cluster-randomized trials. Contemp Clin Trials. 2005 Feb;26(1):45-58. Epub 2005 Jan 27.