"Juan de Valverde de Amusco. Evidence for the identification of his portrait - claimed to be that of Vesalius - with a reappraisal of his work" . "Guerra F., Juan de Valverde de Amusco. Evidence for the identification of his portrait - claimed to be that of Vesalius - with a reappraisal of his work, Clio Medica, II. Pergamon Press, 1967" . . . . . . "specific bibliography" . "bibliografia specifica" .