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DAGitty: a graphical tool for analyzing causal diagrams.
Textor J, Hardt J, Knüppel S. Textor J, et al. Among authors: knuppel s. Epidemiology. 2011 Sep;22(5):745. doi: 10.1097/EDE.0b013e318225c2be. Epidemiology. 2011. PMID: 21811114 No abstract available.
[Basics of using the DAG programs].
Knüppel S. Knüppel S. Gesundheitswesen. 2011 Dec;73(12):893-6. doi: 10.1055/s-0031-1291189. Epub 2011 Dec 22. Gesundheitswesen. 2011. PMID: 22193899 German.
[Directed acyclic graphs - reply to methodological concerns].
Stang A, Schipf S, Knüppel S. Stang A, et al. Among authors: knuppel s. Gesundheitswesen. 2011 Dec;73(12):925-6. doi: 10.1055/s-0031-1291195. Epub 2011 Dec 22. Gesundheitswesen. 2011. PMID: 22193910 German. No abstract available.
A method for sensitivity analysis to assess the effects of measurement error in multiple exposure variables using external validation data.
Agogo GO, van der Voet H, van 't Veer P, Ferrari P, Muller DC, Sánchez-Cantalejo E, Bamia C, Braaten T, Knüppel S, Johansson I, van Eeuwijk FA, Boshuizen HC. Agogo GO, et al. Among authors: knuppel s. BMC Med Res Methodol. 2016 Oct 13;16(1):139. doi: 10.1186/s12874-016-0240-1. BMC Med Res Methodol. 2016. PMID: 27737637 Free PMC article.
Eating out is different from eating at home among individuals who occasionally eat out. A cross-sectional study among middle-aged adults from eleven European countries.
Naska A, Katsoulis M, Orfanos P, Lachat C, Gedrich K, Rodrigues SS, Freisling H, Kolsteren P, Engeset D, Lopes C, Elmadfa I, Wendt A, Knüppel S, Turrini A, Tumino R, Ocké MC, Sekula W, Nilsson LM, Key T, Trichopoulou A; HECTOR Consortium. Naska A, et al. Among authors: knuppel s. Br J Nutr. 2015 Jun 28;113(12):1951-64. doi: 10.1017/S0007114515000963. Epub 2015 Apr 24. Br J Nutr. 2015. PMID: 25907775
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