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Davis' book represents the culmination of a meticulous 16-year study of over 700 patients with rheumatic fever. The study includes the immediate family of those afflicted with the disease, a monumental undertaking. The project was well conceived and completed with painstaking attention to detail. Unfortunately, the verbal presentation of the data is cluttered with so many facts that the significant points tend to get lost in the forest (eg, "Males will be first considered. At ages up to 14 the Europeans have significantly less mitral stenosis than Afro-Asians [P is approx 0.05]. At age 15 or more there is no significant difference between the prevalence of mitral stenosis in the two communities. As regards mitral stenosis in females, in those up to 14 years of age, the Europeans have significantly less than Afro-Asians [P < 0.05 χ21 = 6.26]. At ages 15 to 24 the same holds true [P
McCarty RJ. Rheumatic Fever: Clinical, Ecological and Familial Aspects.. Arch Intern Med. 1970;126(3):533-534. doi:10.1001/archinte.1970.00310090163039