Yu, Z. & Lin, X. (2008) Nonparametric Regression Using Kernel Estimating Equations for Correlated Failure Time Data Analysis. Biometrika, 95, 123-137.
LIU, L. & YU, Z. (2008). A Likelihood Reformulation Method in Mixed Models with Non-normal Random Effect. Statistics in Medicine. 27:3105–3124.
Yu, Z. & Lin, X. (2009) Semiparametric Regression with time-dependent regression coefficients for failure time data analaysis. Statistica Sinica, 20, 853-869.
Yu, Z, Tu, W., and Lee, M-L. (2009). A Semiparametric Threshold Regression Analysis of Sexually Transmitted Infections in Adolescent Women. Statistics in Medicine, 28, 3029-3042.
YU, Z, Liu, L. (2011). A Joint Model of Recurrent Events and a Terminal Events with Nonparametric Covariate Function. Statistics in Medicine, 30 (22), 2683 – 95.
Yu, Z, Lin, X., Tu, W. (2011) Semiparametric Frailty Models for Cluster Failure Time Data. Biometrics, 68 (2), 429-36.
Yu, Z, Liu , Bravata, DM, Williams, LS, Tepper, RS. (2012) A semiparametric recurrent events model with time-varying coefficients, Statistics in Medicine, DOI: 10.1002/sim.5575.
Yu, Z, Liu L, Bravata, DM, Williams, LS (2013) A joint model of recurrent events and a terminal event with time-varying coefficients. Biometrical Journal 00 (2013) 0, 1–15.