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Mild cognitive impairment, degenerative and vascular dementia as predictors of intra-hospital, short- and long-term mortality in the oldest old Zekry Berger, Dina Selma; Herrmann, François; Graf, Christophe; Giannelli, Sandra Véronique; ... Krause, Karl-Heinz 2011
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Time-dependent study entries and exposures in cohort studies can easily be sources of different and avoidable types of bias Wolkewitz, Martin; Allignol, Arthur; Harbarth, Stéphan Juergen; de Angelis, Giulia; ... Beyersmann, Jan 2012