Gray RJ. Weighted estimating equations for linear regression analysis of clustered failure time data. Lifetime Data Analysis, 2003, 9:123-138.

Fine JP and Gray RJ. A proportional hazards model for the subdistribution of a competing risk. J Am Stat Assoc, 1999, 94:496-509.

Gray RJ. Hazard rate regression using ordinary nonparametric regression smoothers. J Comp Graph Stat, 1996, 5:190-207.

Gray RJ. Tests for variation over groups in survival data. J Am Stat Assoc, 1995, 90:198-203.

Gray RJ. A kernel method for incorporating information on disease progression in the analysis of survival. Biometrika, 1994, 81:527-539.

Gray RJ. A Bayesian analysis of institutional effects in a multicenter cancer clinical trial. Biometrics, 1994, 50:244-253.