Malagon, G. V., L. N. B. Garcia, S. B. Lugo, J. V. Malagón, A. B. Santos, and J. A. Morales. “Risk Factors in Obstetric Hysterectomy in a Second Level Hospital in Mexico”. European Scientific Journal, ESJ, Vol. 13, no. 30, Oct. 2017, p. 52, doi:10.19044/esj.2017.v13n30p52.