Victorino, R. M., Maria, V. A., Jeffries, D. J., & Pinching, A. (1986). Absence of HTLV-III/LAV antibodies in ex-residents from Angola and Mozambique returning to Portugal before 1979. Acta Médica Portuguesa, 7(1), 49–50. https://doi.org/10.20344/amp.3593