1Greenland S, Schlesselman JJ, Criqui MH. The Fallacy of Employing Standardized Regression Coefficients and Correlations as Measures of Effect [J]. American Journal of Epidemiology, 1986,123(2).
2Bring J. How to Standardize Regression Coefficients [J]. The Ameri- can Statistician,1994, 48(3).
3Zhao LP, Kristal A, White E. Estimating Relative Risk Function in Case-control Studies Using a Nonparametric Logistic Regression [J]. Am. J.Epidemiol,1996, (144).
4Karvanen J, Frank E, Harrell J. Visualizing Covariates in Proportional Hazards Mode! [J]. Statistic in Medicine, 2009, (25).
