E. A. Cardoso, A. M. Terrinha, and J. F. Nunes, “Viral particles identical to HTLV-I in lymphocyte cultures of an asymptomatic woman whose serum contained antibodies against HTLV-I and HTLV-III/LAV-I and LAV-II”., Acta Med Port, vol. 1, no. 1, pp. 5–7, Feb. 1988.