Ramsey SD, Etzioni R, Troxel A, Urban N. Optimizing sampling strategies for estimating quality-adjusted life years. Med Decis Making. 1997 Oct-Dec;17(4):431-8.
Ramsey SD, Etzioni R, Troxel A, Urban N. Optimizing sampling strategies for estimating quality-adjusted life years. Med Decis Making. 1997 Oct-Dec;17(4):431-8.