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3. Evolucion de la fiebre reumatica con tratamiento antiestreptocdecico;Mendoza;Sobretiro de Archivos del Instituto de Cardiologla de Mexico,1957
4. Rammelkamp, C. H. Jr.: Personal communication.
5. Application of the Antistreptolysin-0 Titer in the Evaluation of Joint Pain and in the Diagnosis of Rheumatic Fever;Roy;New England J. Med.,1956