1. Clinical prediction models;Steyerberg,2009
2. Regression modeling strategies;Harrell,2001
3. The elements of statistical learning. Data mining, inference, and prediction;Hastie,2001
4. What you see may not be what you get: a brief, nontechnical introduction to overfitting in regression-type models;Babyak;Psychosom Med,2004
5. How many subjects does it take to do a regression analysis;Green;Multivariate Behav Res,1991