TY - GEN AU - Sargent,D J TI - A general framework for random effects survival analysis in the Cox proportional hazards setting SN - 0006-341X PY - 1999///0211 KW - Animals KW - Biometry KW - methods KW - Carcinogens KW - toxicity KW - Female KW - Mammary Neoplasms, Experimental KW - chemically induced KW - Markov Chains KW - Models, Statistical KW - Monte Carlo Method KW - Proportional Hazards Models KW - Rats KW - Survival Analysis N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S ER -