title: [Invited commentary: directed acyclic graphs - realization of a dream?].
authors.affiliation: Bremer Institut für Präventionsforschung und Sozialmedizin, Universität Bremen, Bremen. pigeot@bips.uni-bremen.de
authors.forename: I
authors.initials: I
authors.lastname: Pigeot
authors.forename: R
authors.initials: R
authors.lastname: Foraita
mesh_terms: D000465:Algorithms; D001699:Biometry / Q000379:methods*; D015984:Causality; D003196:Computer Graphics; D003627:Data Interpretation, Statistical; D004812:Epidemiologic Methods; D016016:Proportional Hazards Models