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1952
Active since
Littell As is an author specializing in epidemiology, time-varying confounding, and marginal structural models.
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MedicineStatisticsEpidemiologyTime-varying ConfoundingMarginal Structural Models
Publications per year
1952–1952
Estimation of the T-year survival rate from follow-up studies over a limited period of time.
Littell As · PubMed · 1952 · 77 citations
Limited Period, Retrospective Cohort Study, Medicine +10
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