title: What's #1, and does it really matter? Cancer surpasses heart disease among "young" Americans, but isn't tops overall.
mesh_terms: D000367:Age Factors; D006331:Heart Diseases / Q000453:epidemiology*; D006801:Humans; D009369:Neoplasms / Q000453:epidemiology*; D014481:United States / Q000453:epidemiology