Data from Embury et al. (1977) on trial to evaluate efficacy of
maintenance chemotherapy for acute myelogenous leukemia.  The data
set is also used in Miller, Surival Analysis.
       
time :  time to remission after chemotherapy (weeks)
 
status: indicator of remission (1) or censored time (0)
 
group:  treatment group, "maintained" or "nonmaintained"

Embury, S. H., Elias, L., Heller, P. H., Hood, C. E., Greenberg, P.
L., and Schrier, S. L. (1977). Remission maintenance therapy in acute
myelogenous leukemia. Western Journal of Medicine 126, 267-272.