TY - BOOK AU - Hanagal David D TI - Modeling survival data using frailty models SN - 978-1-4398-3667-5 U1 - 000SB:610 PY - 2011/// CY - Boca Raton PB - CRC Press KW - Failure time data analysis-mathematical models KW - Survival analysis(biometry)-mathematical models ER -