1. Fundación Valle del Lili, Department of Obstetrics and Gynecology Clínica de Espectro de Acretismo Placentario Cali Colombia
2. Universidad Icesi Cali Colombia
3. Department of Obstetrics and Gynaecology University Hospital CEMIC Buenos Aires Argentina
4. Fundación Valle del Lili Centro de Investigaciones Clínicas Cali Colombia
5. Department of Obstetrics and Gynecology Hospital General de agudos Juan A Fernández Buenos Aires Argentina