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Validity of using multiple imputation for "unknown" stage at diagnosis in population-based cancer registry data
- Qingwei Luo,
- Sam Egger,
- Xue Qin Yu,
- David P. Smith,
- Dianne L. O’Connell
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- Published: June 27, 2017
- https://doi.org/10.1371/journal.pone.0180033