TY  - JOUR
A1  - Keiding, N.
A1  - Andersen, P.K.
A1  - Klein, J.P.
T1  - The role of frailty models and accelerated failure time models in describing heterogeneity due to omitted covariates
Y1  - 1997
DO  - 10.1002/(SICI)1097-0258(19970130)16:2<215::AID-SIM481>3.0.CO;2-J
VL  - 16
IS  - 1‒3

ER  -