Morais, F, G N Silva, R M Santos, J T Sousa, J A Saavedra, and J N Da Costa. 1989. “Rheumatic Fever--Exacerbation or Decline? Analysis of Patients Admitted to a Medical Service Within a Period of 20 Years”. Acta Médica Portuguesa 2 (3). Lisbon, Portugal:132-7. https://doi.org/10.20344/amp.3471.