1. Climate and rheumatic heart disease;Paul;J.A.M.A.,1937
2. Geographic distribution of rheumatic fever and rheumatic heart disease in the United States;Nichol;J. Lab. & Clin. Med.,1936
3. The factor of infection in the rheumatic state;Coburn,1931
4. Incidence of heart disease in Puerto Rico;Suárez;Am. Heart J.,1945
5. The incidence of heart disease in Mexico;Chávez;Am. Heart J.,1942