Valente, C., Faria, M. J., Trindade, L., Barros, M. S., Vieira, A. A., Albuquerque, I., & Rodrigues, R. (1993). Serologic diagnosis of several infectious diseases. Acta Médica Portuguesa, 6(12), 605–612. https://doi.org/10.20344/amp.3165