title: Additional thoughts on causal  inference, probability theory,  and graphical insights.
authors.affiliation: Biometry Research Group, National Cancer Institute, Bethesda, MD 20892 USA. sb16i@nih.gov
authors.forename: Stuart G
authors.initials: SG
authors.lastname: Baker
mesh_terms: D056808:Biostatistics / Q000379:methods*; D006801:Humans; D011338:Probability Theory