Addressing an idiosyncrasy in estimating survival curves using double-sampling in the presence of self-selected right censoring. Constantine E. Frangakis Department of Biostatistics, Johns Hopkins University 615 N. Wolfe St., Baltimore, MD 21205, U.S.A. cfrangak@jhsph.edu and Donald B. Rubin Department of Statistics, Harvard University 1 Oxford St., Cambridge, MA 02138, U.S.A. rubin@stat.harvard.edu In Biometrics (2001, 57: 333-353), with discussion .