title: Re: "Causality inference in observational vs. experimental studies: an empirical comparison".
authors.forename: A T
authors.initials: AT
authors.lastname: Berg
authors.forename: A A
authors.initials: AA
authors.lastname: Herman
mesh_terms: D001942:Breast Feeding; D004812:Epidemiologic Methods; D005527:Food, Fortified; D006801:Humans; D011897:Random Allocation; D012107:Research Design