Schirm, Florian A.Selinski, Silvia2006-01-252006-01-252006-01-25http://hdl.handle.net/2003/2213710.17877/DE290R-14152Different estimation methods for covariance parameters in meta-analyses can result in conflicting p-values concerning the test of treatment effect. We propose a valid method to overcome this problem at least partially by introducing a new estimator for the standard deviation of the common treatment difference.enCovariance parameterEstimation methodMeta-analysis004Interindividual and interocassion variability of toxicokinetic parameters of uptake, exhalation, and metabolism of ethylenereport