title: How many patients? How many doctors?
authors.forename: Julien I E
authors.initials: JI
authors.lastname: Hoffman
mesh_terms: D001530:Belgium / Q000453:epidemiology; D006297:Health Services Accessibility; D006330:Heart Defects, Congenital / Q000453:epidemiology* / Q000401:mortality*; D006801:Humans; D015994:Incidence; D010820:Physicians / Q000706:statistics & numerical data; D015996:Survival Rate; D014481:United States / Q000453:epidemiology