【作者(必填)】Geert Molenberghs1,2⇑Michael G Kenward3
Marc Aerts1
Geert Verbeke1,2
Anastasios A Tsiatis4
Marie Davidian4
Dimitris Rizopoulos5
【文题(必填)】On random sample size, ignorability, ancillarity, completeness, separability, and degeneracy: Sequential trials, random sample sizes, and missing data