E. Gotuzzo Herencia, E. González Lagos, K. Verdonck Bosteels, E. Mayer Arispe, F. Ita Nagy, and D. Clark Leza, “Twenty years of research on HTLV-1 and its medical complications in Peru: general perspectives”, Acta Med Peru, vol. 27, no. 3, pp. 196-203, Sep. 2010.