title: Invited commentary.
authors.forename: Ruth L
authors.initials: RL
authors.lastname: Bush
mesh_terms: D017544:Aortic Aneurysm, Abdominal / Q000453:epidemiology / Q000235:genetics*; D004777:Environment; D020022:Genetic Predisposition to Disease; D006801:Humans; D010375:Pedigree; D015995:Prevalence; D012042:Registries; D018570:Risk Assessment; D012307:Risk Factors; D013548:Sweden / Q000453:epidemiology; D014429:Twins, Dizygotic / Q000235:genetics*; D014430:Twins, Monozygotic / Q000235:genetics*