1970, D. V. Salcedo and M. G. Mujica "A Study of Sterilized Women in the Urban Communities of the Western Area of Santiago, 1963-1966," The Journal of Sex Research, vol. 6, no. 1, p. 42,The sterilization that was first conceived as a recourse of limited medical reach came to be considered as an efficient eugenical procedure that could prevent descendents with hereditary and transmissible disorders, such as mental deficiency, epilepsy, idiopathies, etc.