title: A Further Note on the Validity of Weinberg's Differential Rule.
authors.affiliation: The Galton Laboratory, Department of Genetics, Evolution and Environment, London, United Kingdom. whjames@waitrose.com
authors.forename: William H
authors.initials: WH
authors.lastname: James
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D008957:Models, Genetic; D012737:Sex Factors; D014429:Twins, Dizygotic / Q000235:genetics*; D014430:Twins, Monozygotic