title: [Directed acyclic graphs - reply to methodological concerns].
authors.affiliation: Institut für Klinische Epidemiologie, Medizinische Fakultät, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale). andreas.stang@medizin.uni-halle.de
authors.forename: A
authors.initials: A
authors.lastname: Stang
authors.forename: S
authors.initials: S
authors.lastname: Schipf
authors.forename: S
authors.initials: S
authors.lastname: Knüppel
mesh_terms: D000465:Algorithms; D001699:Biometry / Q000379:methods*; D015984:Causality; D003196:Computer Graphics; D003627:Data Interpretation, Statistical; D004812:Epidemiologic Methods; D016016:Proportional Hazards Models