Missing data/masurement error example. Tumor histology predicts
survival, but prediction is stronger with central lab histology than
with the local institution determination.
Usage
nwtco
Arguments
source
http://faculty.washington.edu/norm/software.html
References
NE Breslow and N Chatterjee (1999),
Design and analysis of two-phase studies with binary outcome applied
to Wilms tumour prognosis.
Applied Statistics48, 457--68.