Missing covariate data in clinical research: when and when not to use the missing-indicator method for analysis.
Groenwold, Rolf HH;
White, Ian R;
Donders, A Rogier T;
Carpenter, James R;
Altman, Douglas G;
Moons, Karel GM;
(2012)
Missing covariate data in clinical research: when and when not to use the missing-indicator method for analysis.
CMAJ, 184 (11).
pp. 1265-1269.
ISSN 0820-3946
DOI: https://doi.org/10.1503/cmaj.110977
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